66858680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{238781}}^1$

素因数の和:238799

約数の個数: 32

約数和(自身を含む): 171923040

約数和(自身を除く): 105064360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 238781, 477562, 955124, 1193905, 1671467, 1910248, 2387810, 3342934, 4775620, 6685868, 8357335, 9551240, 13371736, 16714670, 33429340, 66858680]

約数ペア:

[(1, 66858680), (2, 33429340), (4, 16714670), (5, 13371736), (7, 9551240), (8, 8357335), (10, 6685868), (14, 4775620), (20, 3342934), (28, 2387810), (35, 1910248), (40, 1671467), (56, 1193905), (70, 955124), (140, 477562), (280, 238781)]