12811960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{45757}}^1$

素因数の和:45775

約数の個数: 32

約数和(自身を含む): 32945760

約数和(自身を除く): 20133800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 45757, 91514, 183028, 228785, 320299, 366056, 457570, 640598, 915140, 1281196, 1601495, 1830280, 2562392, 3202990, 6405980, 12811960]

約数ペア:

[(1, 12811960), (2, 6405980), (4, 3202990), (5, 2562392), (7, 1830280), (8, 1601495), (10, 1281196), (14, 915140), (20, 640598), (28, 457570), (35, 366056), (40, 320299), (56, 228785), (70, 183028), (140, 91514), (280, 45757)]