21972720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 320

約数和(自身を含む): 89994240

約数和(自身を除く): 68021520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 29, 30, 33, 35, 40, 41, 42, 44, 48, 55, 56, 58, 60, 66, 70, 77, 80, 82, 84, 87, 88, 105, 110, 112, 116, 120, 123, 132, 140, 145, 154, 164, 165, 168, 174, 176, 203, 205, 210, 220, 231, 232, 240, 246, 264, 280, 287, 290, 308, 319, 328, 330, 336, 348, 385, 406, 410, 420, 435, 440, 451, 462, 464, 492, 528, 560, 574, 580, 609, 615, 616, 638, 656, 660, 696, 770, 812, 820, 840, 861, 870, 880, 902, 924, 957, 984, 1015, 1148, 1155, 1160, 1189, 1218, 1230, 1232, 1276, 1320, 1353, 1392, 1435, 1540, 1595, 1624, 1640, 1680, 1722, 1740, 1804, 1848, 1914, 1968, 2030, 2233, 2255, 2296, 2310, 2320, 2378, 2436, 2460, 2552, 2640, 2706, 2870, 3045, 3080, 3157, 3190, 3248, 3280, 3444, 3480, 3567, 3608, 3696, 3828, 4060, 4305, 4466, 4510, 4592, 4620, 4756, 4785, 4872, 4920, 5104, 5412, 5740, 5945, 6090, 6160, 6314, 6380, 6699, 6765, 6888, 6960, 7134, 7216, 7656, 8120, 8323, 8610, 8932, 9020, 9240, 9471, 9512, 9570, 9744, 9840, 10824, 11165, 11480, 11890, 12180, 12628, 12760, 13079, 13398, 13530, 13776, 14268, 15312, 15785, 16240, 16646, 17220, 17835, 17864, 18040, 18480, 18942, 19024, 19140, 21648, 22330, 22960, 23780, 24360, 24969, 25256, 25520, 26158, 26796, 27060, 28536, 31570, 33292, 33495, 34440, 35670, 35728, 36080, 37884, 38280, 39237, 41615, 44660, 47355, 47560, 48720, 49938, 50512, 52316, 53592, 54120, 57072, 63140, 65395, 66584, 66990, 68880, 71340, 75768, 76560, 78474, 83230, 89320, 91553, 94710, 95120, 99876, 104632, 107184, 108240, 124845, 126280, 130790, 133168, 133980, 142680, 151536, 156948, 166460, 178640, 183106, 189420, 196185, 199752, 209264, 249690, 252560, 261580, 267960, 274659, 285360, 313896, 332920, 366212, 378840, 392370, 399504, 457765, 499380, 523160, 535920, 549318, 627792, 665840, 732424, 757680, 784740, 915530, 998760, 1046320, 1098636, 1373295, 1464848, 1569480, 1831060, 1997520, 2197272, 2746590, 3138960, 3662120, 4394544, 5493180, 7324240, 10986360, 21972720]

約数ペア:

[(1, 21972720), (2, 10986360), (3, 7324240), (4, 5493180), (5, 4394544), (6, 3662120), (7, 3138960), (8, 2746590), (10, 2197272), (11, 1997520), (12, 1831060), (14, 1569480), (15, 1464848), (16, 1373295), (20, 1098636), (21, 1046320), (22, 998760), (24, 915530), (28, 784740), (29, 757680), (30, 732424), (33, 665840), (35, 627792), (40, 549318), (41, 535920), (42, 523160), (44, 499380), (48, 457765), (55, 399504), (56, 392370), (58, 378840), (60, 366212), (66, 332920), (70, 313896), (77, 285360), (80, 274659), (82, 267960), (84, 261580), (87, 252560), (88, 249690), (105, 209264), (110, 199752), (112, 196185), (116, 189420), (120, 183106), (123, 178640), (132, 166460), (140, 156948), (145, 151536), (154, 142680), (164, 133980), (165, 133168), (168, 130790), (174, 126280), (176, 124845), (203, 108240), (205, 107184), (210, 104632), (220, 99876), (231, 95120), (232, 94710), (240, 91553), (246, 89320), (264, 83230), (280, 78474), (287, 76560), (290, 75768), (308, 71340), (319, 68880), (328, 66990), (330, 66584), (336, 65395), (348, 63140), (385, 57072), (406, 54120), (410, 53592), (420, 52316), (435, 50512), (440, 49938), (451, 48720), (462, 47560), (464, 47355), (492, 44660), (528, 41615), (560, 39237), (574, 38280), (580, 37884), (609, 36080), (615, 35728), (616, 35670), (638, 34440), (656, 33495), (660, 33292), (696, 31570), (770, 28536), (812, 27060), (820, 26796), (840, 26158), (861, 25520), (870, 25256), (880, 24969), (902, 24360), (924, 23780), (957, 22960), (984, 22330), (1015, 21648), (1148, 19140), (1155, 19024), (1160, 18942), (1189, 18480), (1218, 18040), (1230, 17864), (1232, 17835), (1276, 17220), (1320, 16646), (1353, 16240), (1392, 15785), (1435, 15312), (1540, 14268), (1595, 13776), (1624, 13530), (1640, 13398), (1680, 13079), (1722, 12760), (1740, 12628), (1804, 12180), (1848, 11890), (1914, 11480), (1968, 11165), (2030, 10824), (2233, 9840), (2255, 9744), (2296, 9570), (2310, 9512), (2320, 9471), (2378, 9240), (2436, 9020), (2460, 8932), (2552, 8610), (2640, 8323), (2706, 8120), (2870, 7656), (3045, 7216), (3080, 7134), (3157, 6960), (3190, 6888), (3248, 6765), (3280, 6699), (3444, 6380), (3480, 6314), (3567, 6160), (3608, 6090), (3696, 5945), (3828, 5740), (4060, 5412), (4305, 5104), (4466, 4920), (4510, 4872), (4592, 4785), (4620, 4756)]