31529740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 76425552

約数和(自身を除く): 44895812

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 361, 380, 397, 418, 722, 794, 836, 1045, 1444, 1588, 1805, 1985, 2090, 3610, 3970, 3971, 4180, 4367, 7220, 7543, 7940, 7942, 8734, 15086, 15884, 17468, 19855, 21835, 30172, 37715, 39710, 43670, 75430, 79420, 82973, 87340, 143317, 150860, 165946, 286634, 331892, 414865, 573268, 716585, 829730, 1433170, 1576487, 1659460, 2866340, 3152974, 6305948, 7882435, 15764870, 31529740]

約数ペア:

[(1, 31529740), (2, 15764870), (4, 7882435), (5, 6305948), (10, 3152974), (11, 2866340), (19, 1659460), (20, 1576487), (22, 1433170), (38, 829730), (44, 716585), (55, 573268), (76, 414865), (95, 331892), (110, 286634), (190, 165946), (209, 150860), (220, 143317), (361, 87340), (380, 82973), (397, 79420), (418, 75430), (722, 43670), (794, 39710), (836, 37715), (1045, 30172), (1444, 21835), (1588, 19855), (1805, 17468), (1985, 15884), (2090, 15086), (3610, 8734), (3970, 7942), (3971, 7940), (4180, 7543), (4367, 7220)]