2688125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:71

約数の個数: 40

約数和(自身を含む): 4048704

約数和(自身を除く): 1360579

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 125, 187, 253, 275, 391, 425, 575, 625, 935, 1265, 1375, 1955, 2125, 2875, 4301, 4675, 6325, 6875, 9775, 10625, 14375, 21505, 23375, 31625, 48875, 107525, 116875, 158125, 244375, 537625, 2688125]

約数ペア:

[(1, 2688125), (5, 537625), (11, 244375), (17, 158125), (23, 116875), (25, 107525), (55, 48875), (85, 31625), (115, 23375), (125, 21505), (187, 14375), (253, 10625), (275, 9775), (391, 6875), (425, 6325), (575, 4675), (625, 4301), (935, 2875), (1265, 2125), (1375, 1955)]