71808680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{105601}}^1$

素因数の和:105629

約数の個数: 32

約数和(自身を含む): 171075240

約数和(自身を除く): 99266560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 105601, 211202, 422404, 528005, 844808, 1056010, 1795217, 2112020, 3590434, 4224040, 7180868, 8976085, 14361736, 17952170, 35904340, 71808680]

約数ペア:

[(1, 71808680), (2, 35904340), (4, 17952170), (5, 14361736), (8, 8976085), (10, 7180868), (17, 4224040), (20, 3590434), (34, 2112020), (40, 1795217), (68, 1056010), (85, 844808), (136, 528005), (170, 422404), (340, 211202), (680, 105601)]