266021960

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{10343}}^1$

素因数の和:10997

約数の個数: 32

約数和(自身を含む): 599538240

約数和(自身を除く): 333516280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 10343, 12860, 20686, 25720, 41372, 51715, 82744, 103430, 206860, 413720, 6650549, 13301098, 26602196, 33252745, 53204392, 66505490, 133010980, 266021960]

約数ペア:

[(1, 266021960), (2, 133010980), (4, 66505490), (5, 53204392), (8, 33252745), (10, 26602196), (20, 13301098), (40, 6650549), (643, 413720), (1286, 206860), (2572, 103430), (3215, 82744), (5144, 51715), (6430, 41372), (10343, 25720), (12860, 20686)]