20180215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2251}}^1$

素因数の和:2430

約数の個数: 16

約数和(自身を含む): 26591616

約数和(自身を除く): 6411401

約数列:

[1, 5, 11, 55, 163, 815, 1793, 2251, 8965, 11255, 24761, 123805, 366913, 1834565, 4036043, 20180215]

約数ペア:

[(1, 20180215), (5, 4036043), (11, 1834565), (55, 366913), (163, 123805), (815, 24761), (1793, 11255), (2251, 8965)]