139480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 343440

約数和(自身を除く): 203960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 317, 440, 634, 1268, 1585, 2536, 3170, 3487, 6340, 6974, 12680, 13948, 17435, 27896, 34870, 69740, 139480]

約数ペア:

[(1, 139480), (2, 69740), (4, 34870), (5, 27896), (8, 17435), (10, 13948), (11, 12680), (20, 6974), (22, 6340), (40, 3487), (44, 3170), (55, 2536), (88, 1585), (110, 1268), (220, 634), (317, 440)]