16557220

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5273}}^1$

素因数の和:5439

約数の個数: 24

約数和(自身を含む): 34998264

約数和(自身を除く): 18441044

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 5273, 10546, 21092, 26365, 52730, 105460, 827861, 1655722, 3311444, 4139305, 8278610, 16557220]

約数ペア:

[(1, 16557220), (2, 8278610), (4, 4139305), (5, 3311444), (10, 1655722), (20, 827861), (157, 105460), (314, 52730), (628, 26365), (785, 21092), (1570, 10546), (3140, 5273)]