8940040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4217}}^1$

素因数の和:4281

約数の個数: 32

約数和(自身を含む): 20499480

約数和(自身を除く): 11559440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 4217, 8434, 16868, 21085, 33736, 42170, 84340, 168680, 223501, 447002, 894004, 1117505, 1788008, 2235010, 4470020, 8940040]

約数ペア:

[(1, 8940040), (2, 4470020), (4, 2235010), (5, 1788008), (8, 1117505), (10, 894004), (20, 447002), (40, 223501), (53, 168680), (106, 84340), (212, 42170), (265, 33736), (424, 21085), (530, 16868), (1060, 8434), (2120, 4217)]