65648840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{12923}}^1$

素因数の和:13061

約数の個数: 32

約数和(自身を含む): 148884480

約数和(自身を除く): 83235640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 12923, 25846, 51692, 64615, 103384, 129230, 258460, 516920, 1641221, 3282442, 6564884, 8206105, 13129768, 16412210, 32824420, 65648840]

約数ペア:

[(1, 65648840), (2, 32824420), (4, 16412210), (5, 13129768), (8, 8206105), (10, 6564884), (20, 3282442), (40, 1641221), (127, 516920), (254, 258460), (508, 129230), (635, 103384), (1016, 64615), (1270, 51692), (2540, 25846), (5080, 12923)]