68178920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{54983}}^1$

素因数の和:55025

約数の個数: 32

約数和(自身を含む): 158353920

約数和(自身を除く): 90175000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 54983, 109966, 219932, 274915, 439864, 549830, 1099660, 1704473, 2199320, 3408946, 6817892, 8522365, 13635784, 17044730, 34089460, 68178920]

約数ペア:

[(1, 68178920), (2, 34089460), (4, 17044730), (5, 13635784), (8, 8522365), (10, 6817892), (20, 3408946), (31, 2199320), (40, 1704473), (62, 1099660), (124, 549830), (155, 439864), (248, 274915), (310, 219932), (620, 109966), (1240, 54983)]