18005125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 24541920

約数和(自身を除く): 6536795

約数列:

[1, 5, 17, 25, 37, 85, 125, 185, 229, 425, 629, 925, 1145, 2125, 3145, 3893, 4625, 5725, 8473, 15725, 19465, 28625, 42365, 78625, 97325, 144041, 211825, 486625, 720205, 1059125, 3601025, 18005125]

約数ペア:

[(1, 18005125), (5, 3601025), (17, 1059125), (25, 720205), (37, 486625), (85, 211825), (125, 144041), (185, 97325), (229, 78625), (425, 42365), (629, 28625), (925, 19465), (1145, 15725), (2125, 8473), (3145, 5725), (3893, 4625)]