51809360

素因数分解:

$2^4\times 5^1\times {\mathrm{647617}}^1$

素因数の和:647630

約数の個数: 20

約数和(自身を含む): 120456948

約数和(自身を除く): 68647588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647617, 1295234, 2590468, 3238085, 5180936, 6476170, 10361872, 12952340, 25904680, 51809360]

約数ペア:

[(1, 51809360), (2, 25904680), (4, 12952340), (5, 10361872), (8, 6476170), (10, 5180936), (16, 3238085), (20, 2590468), (40, 1295234), (80, 647617)]