28650681.000000000

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 389475072

約数和(自身を除く): 251003312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 41, 56, 70, 74, 80, 82, 112, 140, 148, 163, 164, 185, 205, 259, 280, 287, 296, 326, 328, 370, 410, 518, 560, 574, 592, 652, 656, 740, 815, 820, 1036, 1141, 1148, 1295, 1304, 1435, 1480, 1517, 1630, 1640, 2072, 2282, 2296, 2590, 2608, 2870, 2960, 3034, 3260, 3280, 4144, 4564, 4592, 5180, 5705, 5740, 6031, 6068, 6520, 6683, 7585, 9128, 10360, 10619, 11410, 11480, 12062, 12136, 13040, 13366, 15170, 18256, 20720, 21238, 22820, 22960, 24124, 24272, 26732, 30155, 30340, 33415, 42217, 42476, 45640, 46781, 48248, 53095, 53464, 60310, 60680, 66830, 84434, 84952, 91280, 93562, 96496, 106190, 106928, 120620, 121360, 133660, 168868, 169904, 187124, 211085, 212380, 233905, 241240, 247271, 267320, 337736, 374248, 422170, 424760, 467810, 482480, 494542, 534640, 675472, 748496, 844340, 849520, 935620, 989084, 1236355, 1688680, 1730897, 1871240, 1978168, 2472710, 3377360, 3461794, 3742480, 3956336, 4945420, 6923588, 8654485, 9890840, 13847176, 17308970, 19781680, 27694352, 34617940, 69235880, 138471760]

約数ペア:

[(1, 138471760), (2, 69235880), (4, 34617940), (5, 27694352), (7, 19781680), (8, 17308970), (10, 13847176), (14, 9890840), (16, 8654485), (20, 6923588), (28, 4945420), (35, 3956336), (37, 3742480), (40, 3461794), (41, 3377360), (56, 2472710), (70, 1978168), (74, 1871240), (80, 1730897), (82, 1688680), (112, 1236355), (140, 989084), (148, 935620), (163, 849520), (164, 844340), (185, 748496), (205, 675472), (259, 534640), (280, 494542), (287, 482480), (296, 467810), (326, 424760), (328, 422170), (370, 374248), (410, 337736), (518, 267320), (560, 247271), (574, 241240), (592, 233905), (652, 212380), (656, 211085), (740, 187124), (815, 169904), (820, 168868), (1036, 133660), (1141, 121360), (1148, 120620), (1295, 106928), (1304, 106190), (1435, 96496), (1480, 93562), (1517, 91280), (1630, 84952), (1640, 84434), (2072, 66830), (2282, 60680), (2296, 60310), (2590, 53464), (2608, 53095), (2870, 48248), (2960, 46781), (3034, 45640), (3260, 42476), (3280, 42217), (4144, 33415), (4564, 30340), (4592, 30155), (5180, 26732), (5705, 24272), (5740, 24124), (6031, 22960), (6068, 22820), (6520, 21238), (6683, 20720), (7585, 18256), (9128, 15170), (10360, 13366), (10619, 13040), (11410, 12136), (11480, 12062)]