72840625

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 107618112

約数和(自身を除く): 34777487

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 163, 275, 325, 625, 715, 815, 1375, 1625, 1793, 2119, 3125, 3575, 4075, 6875, 8125, 8965, 10595, 17875, 20375, 23309, 34375, 40625, 44825, 52975, 89375, 101875, 116545, 224125, 264875, 446875, 509375, 582725, 1120625, 1324375, 2913625, 5603125, 6621875, 14568125, 72840625]

約数ペア:

[(1, 72840625), (5, 14568125), (11, 6621875), (13, 5603125), (25, 2913625), (55, 1324375), (65, 1120625), (125, 582725), (143, 509375), (163, 446875), (275, 264875), (325, 224125), (625, 116545), (715, 101875), (815, 89375), (1375, 52975), (1625, 44825), (1793, 40625), (2119, 34375), (3125, 23309), (3575, 20375), (4075, 17875), (6875, 10595), (8125, 8965)]