71513840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21803}}^1$

素因数の和:21857

約数の個数: 40

約数和(自身を含む): 170332848

約数和(自身を除く): 98819008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 21803, 43606, 87212, 109015, 174424, 218030, 348848, 436060, 872120, 893923, 1744240, 1787846, 3575692, 4469615, 7151384, 8939230, 14302768, 17878460, 35756920, 71513840]

約数ペア:

[(1, 71513840), (2, 35756920), (4, 17878460), (5, 14302768), (8, 8939230), (10, 7151384), (16, 4469615), (20, 3575692), (40, 1787846), (41, 1744240), (80, 893923), (82, 872120), (164, 436060), (205, 348848), (328, 218030), (410, 174424), (656, 109015), (820, 87212), (1640, 43606), (3280, 21803)]