18696980

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8273}}^1$

素因数の和:8395

約数の個数: 24

約数和(自身を含む): 39615912

約数和(自身を除く): 20918932

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8273, 16546, 33092, 41365, 82730, 165460, 934849, 1869698, 3739396, 4674245, 9348490, 18696980]

約数ペア:

[(1, 18696980), (2, 9348490), (4, 4674245), (5, 3739396), (10, 1869698), (20, 934849), (113, 165460), (226, 82730), (452, 41365), (565, 33092), (1130, 16546), (2260, 8273)]