20161686825

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{41161}}^1$

素因数の和:41495

約数の個数: 72

約数和(自身を含む): 41404361856

約数和(自身を除く): 21242675031

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 311, 315, 525, 933, 1555, 1575, 2177, 2799, 4665, 6531, 7775, 10885, 13995, 19593, 23325, 32655, 41161, 54425, 69975, 97965, 123483, 163275, 205805, 288127, 370449, 489825, 617415, 864381, 1029025, 1440635, 1852245, 2593143, 3087075, 4321905, 7203175, 9261225, 12801071, 12965715, 21609525, 38403213, 64005355, 64828575, 89607497, 115209639, 192016065, 268822491, 320026775, 448037485, 576048195, 806467473, 960080325, 1344112455, 2240187425, 2880240975, 4032337365, 6720562275, 20161686825]

約数ペア:

[(1, 20161686825), (3, 6720562275), (5, 4032337365), (7, 2880240975), (9, 2240187425), (15, 1344112455), (21, 960080325), (25, 806467473), (35, 576048195), (45, 448037485), (63, 320026775), (75, 268822491), (105, 192016065), (175, 115209639), (225, 89607497), (311, 64828575), (315, 64005355), (525, 38403213), (933, 21609525), (1555, 12965715), (1575, 12801071), (2177, 9261225), (2799, 7203175), (4665, 4321905), (6531, 3087075), (7775, 2593143), (10885, 1852245), (13995, 1440635), (19593, 1029025), (23325, 864381), (32655, 617415), (41161, 489825), (54425, 370449), (69975, 288127), (97965, 205805), (123483, 163275)]