51218125

素因数分解:

$5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 76475520

約数和(自身を除く): 25257395

約数列:

[1, 5, 7, 23, 25, 35, 115, 125, 161, 175, 509, 575, 625, 805, 875, 2545, 2875, 3563, 4025, 4375, 11707, 12725, 14375, 17815, 20125, 58535, 63625, 81949, 89075, 100625, 292675, 318125, 409745, 445375, 1463375, 2048725, 2226875, 7316875, 10243625, 51218125]

約数ペア:

[(1, 51218125), (5, 10243625), (7, 7316875), (23, 2226875), (25, 2048725), (35, 1463375), (115, 445375), (125, 409745), (161, 318125), (175, 292675), (509, 100625), (575, 89075), (625, 81949), (805, 63625), (875, 58535), (2545, 20125), (2875, 17815), (3563, 14375), (4025, 12725), (4375, 11707)]