71380940

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{2141}}^1$

素因数の和:3817

約数の個数: 24

約数和(自身を含む): 150059952

約数和(自身を除く): 78679012

約数列:

[1, 2, 4, 5, 10, 20, 1667, 2141, 3334, 4282, 6668, 8335, 8564, 10705, 16670, 21410, 33340, 42820, 3569047, 7138094, 14276188, 17845235, 35690470, 71380940]

約数ペア:

[(1, 71380940), (2, 35690470), (4, 17845235), (5, 14276188), (10, 7138094), (20, 3569047), (1667, 42820), (2141, 33340), (3334, 21410), (4282, 16670), (6668, 10705), (8335, 8564)]