256914918

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 626476032

約数和(自身を除く): 369561114

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 107, 117, 186, 214, 234, 279, 321, 331, 403, 558, 642, 662, 806, 963, 993, 1209, 1391, 1926, 1986, 2418, 2782, 2979, 3317, 3627, 4173, 4303, 5958, 6634, 7254, 8346, 8606, 9951, 10261, 12519, 12909, 19902, 20522, 25038, 25818, 29853, 30783, 35417, 38727, 43121, 59706, 61566, 70834, 77454, 86242, 92349, 106251, 129363, 133393, 184698, 212502, 258726, 266786, 318753, 388089, 400179, 460421, 637506, 776178, 800358, 920842, 1097927, 1200537, 1381263, 2195854, 2401074, 2762526, 3293781, 4143789, 6587562, 8287578, 9881343, 14273051, 19762686, 28546102, 42819153, 85638306, 128457459, 256914918]

約数ペア:

[(1, 256914918), (2, 128457459), (3, 85638306), (6, 42819153), (9, 28546102), (13, 19762686), (18, 14273051), (26, 9881343), (31, 8287578), (39, 6587562), (62, 4143789), (78, 3293781), (93, 2762526), (107, 2401074), (117, 2195854), (186, 1381263), (214, 1200537), (234, 1097927), (279, 920842), (321, 800358), (331, 776178), (403, 637506), (558, 460421), (642, 400179), (662, 388089), (806, 318753), (963, 266786), (993, 258726), (1209, 212502), (1391, 184698), (1926, 133393), (1986, 129363), (2418, 106251), (2782, 92349), (2979, 86242), (3317, 77454), (3627, 70834), (4173, 61566), (4303, 59706), (5958, 43121), (6634, 38727), (7254, 35417), (8346, 30783), (8606, 29853), (9951, 25818), (10261, 25038), (12519, 20522), (12909, 19902)]