28245840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 320

約数和(自身を含む): 113135616

約数和(自身を除く): 84889776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 23, 24, 28, 30, 34, 35, 40, 42, 43, 46, 48, 51, 56, 60, 68, 69, 70, 80, 84, 85, 86, 92, 102, 105, 112, 115, 119, 120, 129, 136, 138, 140, 161, 168, 170, 172, 184, 204, 210, 215, 230, 238, 240, 255, 258, 272, 276, 280, 301, 322, 336, 340, 344, 345, 357, 368, 391, 408, 420, 430, 460, 476, 483, 510, 516, 552, 560, 595, 602, 644, 645, 680, 688, 690, 714, 731, 782, 805, 816, 840, 860, 903, 920, 952, 966, 989, 1020, 1032, 1104, 1173, 1190, 1204, 1288, 1290, 1360, 1380, 1428, 1462, 1505, 1564, 1610, 1680, 1720, 1785, 1806, 1840, 1904, 1932, 1955, 1978, 2040, 2064, 2193, 2346, 2380, 2408, 2415, 2576, 2580, 2737, 2760, 2856, 2924, 2967, 3010, 3128, 3220, 3440, 3570, 3612, 3655, 3864, 3910, 3956, 4080, 4386, 4515, 4692, 4760, 4816, 4830, 4945, 5117, 5160, 5474, 5520, 5712, 5848, 5865, 5934, 6020, 6256, 6440, 6923, 7140, 7224, 7310, 7728, 7820, 7912, 8211, 8772, 9030, 9384, 9520, 9660, 9890, 10234, 10320, 10948, 10965, 11696, 11730, 11868, 12040, 12880, 13685, 13846, 14280, 14448, 14620, 14835, 15351, 15640, 15824, 16422, 16813, 17544, 18060, 18768, 19320, 19780, 20468, 20769, 21896, 21930, 23460, 23736, 24080, 25585, 27370, 27692, 28560, 29240, 29670, 30702, 31280, 32844, 33626, 34615, 35088, 36120, 38640, 39560, 40936, 41055, 41538, 43792, 43860, 46920, 47472, 50439, 51170, 54740, 55384, 58480, 59340, 61404, 65688, 67252, 69230, 72240, 76755, 79120, 81872, 82110, 83076, 84065, 87720, 93840, 100878, 102340, 103845, 109480, 110768, 117691, 118680, 122808, 131376, 134504, 138460, 153510, 164220, 166152, 168130, 175440, 201756, 204680, 207690, 218960, 235382, 237360, 245616, 252195, 269008, 276920, 307020, 328440, 332304, 336260, 353073, 403512, 409360, 415380, 470764, 504390, 553840, 588455, 614040, 656880, 672520, 706146, 807024, 830760, 941528, 1008780, 1176910, 1228080, 1345040, 1412292, 1661520, 1765365, 1883056, 2017560, 2353820, 2824584, 3530730, 4035120, 4707640, 5649168, 7061460, 9415280, 14122920, 28245840]

約数ペア:

[(1, 28245840), (2, 14122920), (3, 9415280), (4, 7061460), (5, 5649168), (6, 4707640), (7, 4035120), (8, 3530730), (10, 2824584), (12, 2353820), (14, 2017560), (15, 1883056), (16, 1765365), (17, 1661520), (20, 1412292), (21, 1345040), (23, 1228080), (24, 1176910), (28, 1008780), (30, 941528), (34, 830760), (35, 807024), (40, 706146), (42, 672520), (43, 656880), (46, 614040), (48, 588455), (51, 553840), (56, 504390), (60, 470764), (68, 415380), (69, 409360), (70, 403512), (80, 353073), (84, 336260), (85, 332304), (86, 328440), (92, 307020), (102, 276920), (105, 269008), (112, 252195), (115, 245616), (119, 237360), (120, 235382), (129, 218960), (136, 207690), (138, 204680), (140, 201756), (161, 175440), (168, 168130), (170, 166152), (172, 164220), (184, 153510), (204, 138460), (210, 134504), (215, 131376), (230, 122808), (238, 118680), (240, 117691), (255, 110768), (258, 109480), (272, 103845), (276, 102340), (280, 100878), (301, 93840), (322, 87720), (336, 84065), (340, 83076), (344, 82110), (345, 81872), (357, 79120), (368, 76755), (391, 72240), (408, 69230), (420, 67252), (430, 65688), (460, 61404), (476, 59340), (483, 58480), (510, 55384), (516, 54740), (552, 51170), (560, 50439), (595, 47472), (602, 46920), (644, 43860), (645, 43792), (680, 41538), (688, 41055), (690, 40936), (714, 39560), (731, 38640), (782, 36120), (805, 35088), (816, 34615), (840, 33626), (860, 32844), (903, 31280), (920, 30702), (952, 29670), (966, 29240), (989, 28560), (1020, 27692), (1032, 27370), (1104, 25585), (1173, 24080), (1190, 23736), (1204, 23460), (1288, 21930), (1290, 21896), (1360, 20769), (1380, 20468), (1428, 19780), (1462, 19320), (1505, 18768), (1564, 18060), (1610, 17544), (1680, 16813), (1720, 16422), (1785, 15824), (1806, 15640), (1840, 15351), (1904, 14835), (1932, 14620), (1955, 14448), (1978, 14280), (2040, 13846), (2064, 13685), (2193, 12880), (2346, 12040), (2380, 11868), (2408, 11730), (2415, 11696), (2576, 10965), (2580, 10948), (2737, 10320), (2760, 10234), (2856, 9890), (2924, 9660), (2967, 9520), (3010, 9384), (3128, 9030), (3220, 8772), (3440, 8211), (3570, 7912), (3612, 7820), (3655, 7728), (3864, 7310), (3910, 7224), (3956, 7140), (4080, 6923), (4386, 6440), (4515, 6256), (4692, 6020), (4760, 5934), (4816, 5865), (4830, 5848), (4945, 5712), (5117, 5520), (5160, 5474)]