90321880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1567}}^1$

素因数の和:1720

約数の個数: 64

約数和(自身を含む): 223534080

約数和(自身を除く): 133212200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 440, 524, 655, 1048, 1310, 1441, 1567, 2620, 2882, 3134, 5240, 5764, 6268, 7205, 7835, 11528, 12536, 14410, 15670, 17237, 28820, 31340, 34474, 57640, 62680, 68948, 86185, 137896, 172370, 205277, 344740, 410554, 689480, 821108, 1026385, 1642216, 2052770, 2258047, 4105540, 4516094, 8211080, 9032188, 11290235, 18064376, 22580470, 45160940, 90321880]

約数ペア:

[(1, 90321880), (2, 45160940), (4, 22580470), (5, 18064376), (8, 11290235), (10, 9032188), (11, 8211080), (20, 4516094), (22, 4105540), (40, 2258047), (44, 2052770), (55, 1642216), (88, 1026385), (110, 821108), (131, 689480), (220, 410554), (262, 344740), (440, 205277), (524, 172370), (655, 137896), (1048, 86185), (1310, 68948), (1441, 62680), (1567, 57640), (2620, 34474), (2882, 31340), (3134, 28820), (5240, 17237), (5764, 15670), (6268, 14410), (7205, 12536), (7835, 11528)]