129820625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:875

約数の個数: 40

約数和(自身を含む): 184890816

約数和(自身を除く): 55070191

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 575, 625, 821, 1265, 1375, 2875, 4105, 6325, 6875, 9031, 14375, 18883, 20525, 31625, 45155, 94415, 102625, 158125, 207713, 225775, 472075, 513125, 1038565, 1128875, 2360375, 5192825, 5644375, 11801875, 25964125, 129820625]

約数ペア:

[(1, 129820625), (5, 25964125), (11, 11801875), (23, 5644375), (25, 5192825), (55, 2360375), (115, 1128875), (125, 1038565), (253, 513125), (275, 472075), (575, 225775), (625, 207713), (821, 158125), (1265, 102625), (1375, 94415), (2875, 45155), (4105, 31625), (6325, 20525), (6875, 18883), (9031, 14375)]