81643770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2251}}^1$

素因数の和:2308

約数の個数: 96

約数和(自身を含む): 236081664

約数和(自身を除く): 154437894

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 31, 39, 45, 62, 65, 78, 90, 93, 117, 130, 155, 186, 195, 234, 279, 310, 390, 403, 465, 558, 585, 806, 930, 1170, 1209, 1395, 2015, 2251, 2418, 2790, 3627, 4030, 4502, 6045, 6753, 7254, 11255, 12090, 13506, 18135, 20259, 22510, 29263, 33765, 36270, 40518, 58526, 67530, 69781, 87789, 101295, 139562, 146315, 175578, 202590, 209343, 263367, 292630, 348905, 418686, 438945, 526734, 628029, 697810, 877890, 907153, 1046715, 1256058, 1316835, 1814306, 2093430, 2633670, 2721459, 3140145, 4535765, 5442918, 6280290, 8164377, 9071530, 13607295, 16328754, 27214590, 40821885, 81643770]

約数ペア:

[(1, 81643770), (2, 40821885), (3, 27214590), (5, 16328754), (6, 13607295), (9, 9071530), (10, 8164377), (13, 6280290), (15, 5442918), (18, 4535765), (26, 3140145), (30, 2721459), (31, 2633670), (39, 2093430), (45, 1814306), (62, 1316835), (65, 1256058), (78, 1046715), (90, 907153), (93, 877890), (117, 697810), (130, 628029), (155, 526734), (186, 438945), (195, 418686), (234, 348905), (279, 292630), (310, 263367), (390, 209343), (403, 202590), (465, 175578), (558, 146315), (585, 139562), (806, 101295), (930, 87789), (1170, 69781), (1209, 67530), (1395, 58526), (2015, 40518), (2251, 36270), (2418, 33765), (2790, 29263), (3627, 22510), (4030, 20259), (4502, 18135), (6045, 13506), (6753, 12090), (7254, 11255)]