20237875

素因数分解:

$5^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 29278080

約数和(自身を除く): 9040205

約数列:

[1, 5, 7, 25, 35, 101, 125, 175, 229, 505, 707, 875, 1145, 1603, 2525, 3535, 5725, 8015, 12625, 17675, 23129, 28625, 40075, 88375, 115645, 161903, 200375, 578225, 809515, 2891125, 4047575, 20237875]

約数ペア:

[(1, 20237875), (5, 4047575), (7, 2891125), (25, 809515), (35, 578225), (101, 200375), (125, 161903), (175, 115645), (229, 88375), (505, 40075), (707, 28625), (875, 23129), (1145, 17675), (1603, 12625), (2525, 8015), (3535, 5725)]