66815720

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{5701}}^1$

素因数の和:6005

約数の個数: 32

約数和(自身を含む): 150874920

約数和(自身を除く): 84059200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2930, 5701, 5860, 11402, 11720, 22804, 28505, 45608, 57010, 114020, 228040, 1670393, 3340786, 6681572, 8351965, 13363144, 16703930, 33407860, 66815720]

約数ペア:

[(1, 66815720), (2, 33407860), (4, 16703930), (5, 13363144), (8, 8351965), (10, 6681572), (20, 3340786), (40, 1670393), (293, 228040), (586, 114020), (1172, 57010), (1465, 45608), (2344, 28505), (2930, 22804), (5701, 11720), (5860, 11402)]