20746375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{751}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 29562624

約数和(自身を除く): 8816249

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 325, 425, 751, 1105, 1625, 2125, 3755, 5525, 9763, 12767, 18775, 27625, 48815, 63835, 93875, 165971, 244075, 319175, 829855, 1220375, 1595875, 4149275, 20746375]

約数ペア:

[(1, 20746375), (5, 4149275), (13, 1595875), (17, 1220375), (25, 829855), (65, 319175), (85, 244075), (125, 165971), (221, 93875), (325, 63835), (425, 48815), (751, 27625), (1105, 18775), (1625, 12767), (2125, 9763), (3755, 5525)]