15920428

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 28428624

約数和(自身を除く): 12508196

約数列:

[1, 2, 4, 101, 157, 202, 251, 314, 404, 502, 628, 1004, 15857, 25351, 31714, 39407, 50702, 63428, 78814, 101404, 157628, 3980107, 7960214, 15920428]

約数ペア:

[(1, 15920428), (2, 7960214), (4, 3980107), (101, 157628), (157, 101404), (202, 78814), (251, 63428), (314, 50702), (404, 39407), (502, 31714), (628, 25351), (1004, 15857)]