28273440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 192

約数和(自身を含む): 100590336

約数和(自身を除く): 72316896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 96, 104, 115, 120, 130, 138, 156, 160, 184, 195, 197, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 394, 416, 460, 480, 520, 552, 591, 598, 624, 690, 736, 780, 788, 897, 920, 985, 1040, 1104, 1182, 1196, 1248, 1380, 1495, 1560, 1576, 1794, 1840, 1970, 2080, 2208, 2364, 2392, 2561, 2760, 2955, 2990, 3120, 3152, 3588, 3680, 3940, 4485, 4531, 4728, 4784, 5122, 5520, 5910, 5980, 6240, 6304, 7176, 7683, 7880, 8970, 9062, 9456, 9568, 10244, 11040, 11820, 11960, 12805, 13593, 14352, 15366, 15760, 17940, 18124, 18912, 20488, 22655, 23640, 23920, 25610, 27186, 28704, 30732, 31520, 35880, 36248, 38415, 40976, 45310, 47280, 47840, 51220, 54372, 58903, 61464, 67965, 71760, 72496, 76830, 81952, 90620, 94560, 102440, 108744, 117806, 122928, 135930, 143520, 144992, 153660, 176709, 181240, 204880, 217488, 235612, 245856, 271860, 294515, 307320, 353418, 362480, 409760, 434976, 471224, 543720, 589030, 614640, 706836, 724960, 883545, 942448, 1087440, 1178060, 1229280, 1413672, 1767090, 1884896, 2174880, 2356120, 2827344, 3534180, 4712240, 5654688, 7068360, 9424480, 14136720, 28273440]

約数ペア:

[(1, 28273440), (2, 14136720), (3, 9424480), (4, 7068360), (5, 5654688), (6, 4712240), (8, 3534180), (10, 2827344), (12, 2356120), (13, 2174880), (15, 1884896), (16, 1767090), (20, 1413672), (23, 1229280), (24, 1178060), (26, 1087440), (30, 942448), (32, 883545), (39, 724960), (40, 706836), (46, 614640), (48, 589030), (52, 543720), (60, 471224), (65, 434976), (69, 409760), (78, 362480), (80, 353418), (92, 307320), (96, 294515), (104, 271860), (115, 245856), (120, 235612), (130, 217488), (138, 204880), (156, 181240), (160, 176709), (184, 153660), (195, 144992), (197, 143520), (208, 135930), (230, 122928), (240, 117806), (260, 108744), (276, 102440), (299, 94560), (312, 90620), (345, 81952), (368, 76830), (390, 72496), (394, 71760), (416, 67965), (460, 61464), (480, 58903), (520, 54372), (552, 51220), (591, 47840), (598, 47280), (624, 45310), (690, 40976), (736, 38415), (780, 36248), (788, 35880), (897, 31520), (920, 30732), (985, 28704), (1040, 27186), (1104, 25610), (1182, 23920), (1196, 23640), (1248, 22655), (1380, 20488), (1495, 18912), (1560, 18124), (1576, 17940), (1794, 15760), (1840, 15366), (1970, 14352), (2080, 13593), (2208, 12805), (2364, 11960), (2392, 11820), (2561, 11040), (2760, 10244), (2955, 9568), (2990, 9456), (3120, 9062), (3152, 8970), (3588, 7880), (3680, 7683), (3940, 7176), (4485, 6304), (4531, 6240), (4728, 5980), (4784, 5910), (5122, 5520)]