18266456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 39070080

約数和(自身を除く): 20803624

約数列:

[1, 2, 4, 8, 13, 26, 37, 47, 52, 74, 94, 101, 104, 148, 188, 202, 296, 376, 404, 481, 611, 808, 962, 1222, 1313, 1739, 1924, 2444, 2626, 3478, 3737, 3848, 4747, 4888, 5252, 6956, 7474, 9494, 10504, 13912, 14948, 18988, 22607, 29896, 37976, 45214, 48581, 61711, 90428, 97162, 123422, 175639, 180856, 194324, 246844, 351278, 388648, 493688, 702556, 1405112, 2283307, 4566614, 9133228, 18266456]

約数ペア:

[(1, 18266456), (2, 9133228), (4, 4566614), (8, 2283307), (13, 1405112), (26, 702556), (37, 493688), (47, 388648), (52, 351278), (74, 246844), (94, 194324), (101, 180856), (104, 175639), (148, 123422), (188, 97162), (202, 90428), (296, 61711), (376, 48581), (404, 45214), (481, 37976), (611, 29896), (808, 22607), (962, 18988), (1222, 14948), (1313, 13912), (1739, 10504), (1924, 9494), (2444, 7474), (2626, 6956), (3478, 5252), (3737, 4888), (3848, 4747)]