919924990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{6577}}^1$

素因数の和:6852

約数の個数: 32

約数和(自身を含む): 1687967424

約数和(自身を除く): 768042434

約数列:

[1, 2, 5, 10, 71, 142, 197, 355, 394, 710, 985, 1970, 6577, 13154, 13987, 27974, 32885, 65770, 69935, 139870, 466967, 933934, 1295669, 2334835, 2591338, 4669670, 6478345, 12956690, 91992499, 183984998, 459962495, 919924990]

約数ペア:

[(1, 919924990), (2, 459962495), (5, 183984998), (10, 91992499), (71, 12956690), (142, 6478345), (197, 4669670), (355, 2591338), (394, 2334835), (710, 1295669), (985, 933934), (1970, 466967), (6577, 139870), (13154, 69935), (13987, 65770), (27974, 32885)]