128352644

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{86491}}^1$

素因数の和:86555

約数の個数: 24

約数和(自身を含む): 261551808

約数和(自身を除く): 133199164

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 86491, 172982, 345964, 605437, 1210874, 2421748, 4584023, 9168046, 18336092, 32088161, 64176322, 128352644]

約数ペア:

[(1, 128352644), (2, 64176322), (4, 32088161), (7, 18336092), (14, 9168046), (28, 4584023), (53, 2421748), (106, 1210874), (212, 605437), (371, 345964), (742, 172982), (1484, 86491)]