12131375

素因数分解:

$5^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 32

約数和(自身を含む): 16171584

約数和(自身を除く): 4040209

約数列:

[1, 5, 25, 37, 43, 61, 125, 185, 215, 305, 925, 1075, 1525, 1591, 2257, 2623, 4625, 5375, 7625, 7955, 11285, 13115, 39775, 56425, 65575, 97051, 198875, 282125, 327875, 485255, 2426275, 12131375]

約数ペア:

[(1, 12131375), (5, 2426275), (25, 485255), (37, 327875), (43, 282125), (61, 198875), (125, 97051), (185, 65575), (215, 56425), (305, 39775), (925, 13115), (1075, 11285), (1525, 7955), (1591, 7625), (2257, 5375), (2623, 4625)]