71084980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{86689}}^1$

素因数の和:86739

約数の個数: 24

約数和(自身を含む): 152921160

約数和(自身を除く): 81836180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 86689, 173378, 346756, 433445, 866890, 1733780, 3554249, 7108498, 14216996, 17771245, 35542490, 71084980]

約数ペア:

[(1, 71084980), (2, 35542490), (4, 17771245), (5, 14216996), (10, 7108498), (20, 3554249), (41, 1733780), (82, 866890), (164, 433445), (205, 346756), (410, 173378), (820, 86689)]