18317960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12377}}^1$

素因数の和:12425

約数の個数: 32

約数和(自身を含む): 42332760

約数和(自身を除く): 24014800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12377, 24754, 49508, 61885, 99016, 123770, 247540, 457949, 495080, 915898, 1831796, 2289745, 3663592, 4579490, 9158980, 18317960]

約数ペア:

[(1, 18317960), (2, 9158980), (4, 4579490), (5, 3663592), (8, 2289745), (10, 1831796), (20, 915898), (37, 495080), (40, 457949), (74, 247540), (148, 123770), (185, 99016), (296, 61885), (370, 49508), (740, 24754), (1480, 12377)]