666889730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{34429}}^1$

素因数の和:34598

約数の個数: 32

約数和(自身を含む): 1301454000

約数和(自身を除く): 634564270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1490, 1937, 3874, 9685, 19370, 34429, 68858, 172145, 344290, 447577, 895154, 2237885, 4475770, 5129921, 10259842, 25649605, 51299210, 66688973, 133377946, 333444865, 666889730]

約数ペア:

[(1, 666889730), (2, 333444865), (5, 133377946), (10, 66688973), (13, 51299210), (26, 25649605), (65, 10259842), (130, 5129921), (149, 4475770), (298, 2237885), (745, 895154), (1490, 447577), (1937, 344290), (3874, 172145), (9685, 68858), (19370, 34429)]