71871940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{513371}}^1$

素因数の和:513387

約数の個数: 24

約数和(自身を含む): 172492992

約数和(自身を除く): 100621052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 513371, 1026742, 2053484, 2566855, 3593597, 5133710, 7187194, 10267420, 14374388, 17967985, 35935970, 71871940]

約数ペア:

[(1, 71871940), (2, 35935970), (4, 17967985), (5, 14374388), (7, 10267420), (10, 7187194), (14, 5133710), (20, 3593597), (28, 2566855), (35, 2053484), (70, 1026742), (140, 513371)]