20885748478

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:977

約数の個数: 64

約数和(自身を含む): 36841609728

約数和(自身を除く): 15955861250

約数列:

[1, 2, 7, 14, 53, 106, 277, 307, 331, 371, 554, 614, 662, 742, 1939, 2149, 2317, 3878, 4298, 4634, 14681, 16271, 17543, 29362, 32542, 35086, 85039, 91687, 101617, 102767, 113897, 122801, 170078, 183374, 203234, 205534, 227794, 245602, 595273, 641809, 711319, 1190546, 1283618, 1422638, 4507067, 4859411, 5385701, 9014134, 9718822, 10771402, 28147909, 31549469, 34015877, 37699907, 56295818, 63098938, 68031754, 75399814, 197035363, 394070726, 1491839177, 2983678354, 10442874239, 20885748478]

約数ペア:

[(1, 20885748478), (2, 10442874239), (7, 2983678354), (14, 1491839177), (53, 394070726), (106, 197035363), (277, 75399814), (307, 68031754), (331, 63098938), (371, 56295818), (554, 37699907), (614, 34015877), (662, 31549469), (742, 28147909), (1939, 10771402), (2149, 9718822), (2317, 9014134), (3878, 5385701), (4298, 4859411), (4634, 4507067), (14681, 1422638), (16271, 1283618), (17543, 1190546), (29362, 711319), (32542, 641809), (35086, 595273), (85039, 245602), (91687, 227794), (101617, 205534), (102767, 203234), (113897, 183374), (122801, 170078)]