31231975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1779

約数の個数: 24

約数和(自身を含む): 41983920

約数和(自身を除く): 10751945

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 1709, 3655, 8545, 18275, 29053, 42725, 73487, 145265, 367435, 726325, 1249279, 1837175, 6246395, 31231975]

約数ペア:

[(1, 31231975), (5, 6246395), (17, 1837175), (25, 1249279), (43, 726325), (85, 367435), (215, 145265), (425, 73487), (731, 42725), (1075, 29053), (1709, 18275), (3655, 8545)]