345020080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139121}}^1$

素因数の和:139165

約数の個数: 40

約数和(自身を含む): 828054144

約数和(自身を除く): 483034064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 139121, 278242, 556484, 695605, 1112968, 1391210, 2225936, 2782420, 4312751, 5564840, 8625502, 11129680, 17251004, 21563755, 34502008, 43127510, 69004016, 86255020, 172510040, 345020080]

約数ペア:

[(1, 345020080), (2, 172510040), (4, 86255020), (5, 69004016), (8, 43127510), (10, 34502008), (16, 21563755), (20, 17251004), (31, 11129680), (40, 8625502), (62, 5564840), (80, 4312751), (124, 2782420), (155, 2225936), (248, 1391210), (310, 1112968), (496, 695605), (620, 556484), (1240, 278242), (2480, 139121)]