393080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 915840

約数和(自身を除く): 522760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 317, 620, 634, 1240, 1268, 1585, 2536, 3170, 6340, 9827, 12680, 19654, 39308, 49135, 78616, 98270, 196540, 393080]

約数ペア:

[(1, 393080), (2, 196540), (4, 98270), (5, 78616), (8, 49135), (10, 39308), (20, 19654), (31, 12680), (40, 9827), (62, 6340), (124, 3170), (155, 2536), (248, 1585), (310, 1268), (317, 1240), (620, 634)]