18449720

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1217}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 41655600

約数和(自身を除く): 23205880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1217, 1516, 1895, 2434, 3032, 3790, 4868, 6085, 7580, 9736, 12170, 15160, 24340, 48680, 461243, 922486, 1844972, 2306215, 3689944, 4612430, 9224860, 18449720]

約数ペア:

[(1, 18449720), (2, 9224860), (4, 4612430), (5, 3689944), (8, 2306215), (10, 1844972), (20, 922486), (40, 461243), (379, 48680), (758, 24340), (1217, 15160), (1516, 12170), (1895, 9736), (2434, 7580), (3032, 6085), (3790, 4868)]