20634375

素因数分解:

$3^1\times 5^5\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 15363321

約数列:

[1, 3, 5, 15, 25, 31, 71, 75, 93, 125, 155, 213, 355, 375, 465, 625, 775, 1065, 1775, 1875, 2201, 2325, 3125, 3875, 5325, 6603, 8875, 9375, 11005, 11625, 19375, 26625, 33015, 44375, 55025, 58125, 96875, 133125, 165075, 221875, 275125, 290625, 665625, 825375, 1375625, 4126875, 6878125, 20634375]

約数ペア:

[(1, 20634375), (3, 6878125), (5, 4126875), (15, 1375625), (25, 825375), (31, 665625), (71, 290625), (75, 275125), (93, 221875), (125, 165075), (155, 133125), (213, 96875), (355, 58125), (375, 55025), (465, 44375), (625, 33015), (775, 26625), (1065, 19375), (1775, 11625), (1875, 11005), (2201, 9375), (2325, 8875), (3125, 6603), (3875, 5325)]