31091125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1$

素因数の和:119

約数の個数: 48

約数和(自身を含む): 44933616

約数和(自身を除く): 13842491

約数列:

[1, 5, 13, 19, 25, 53, 65, 95, 125, 247, 265, 325, 361, 475, 689, 1007, 1235, 1325, 1625, 1805, 2375, 3445, 4693, 5035, 6175, 6625, 9025, 13091, 17225, 19133, 23465, 25175, 30875, 45125, 65455, 86125, 95665, 117325, 125875, 248729, 327275, 478325, 586625, 1243645, 1636375, 2391625, 6218225, 31091125]

約数ペア:

[(1, 31091125), (5, 6218225), (13, 2391625), (19, 1636375), (25, 1243645), (53, 586625), (65, 478325), (95, 327275), (125, 248729), (247, 125875), (265, 117325), (325, 95665), (361, 86125), (475, 65455), (689, 45125), (1007, 30875), (1235, 25175), (1325, 23465), (1625, 19133), (1805, 17225), (2375, 13091), (3445, 9025), (4693, 6625), (5035, 6175)]