64863980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{25537}}^1$

素因数の和:25673

約数の個数: 24

約数和(自身を含む): 137292288

約数和(自身を除く): 72428308

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 25537, 51074, 102148, 127685, 255370, 510740, 3243199, 6486398, 12972796, 16215995, 32431990, 64863980]

約数ペア:

[(1, 64863980), (2, 32431990), (4, 16215995), (5, 12972796), (10, 6486398), (20, 3243199), (127, 510740), (254, 255370), (508, 127685), (635, 102148), (1270, 51074), (2540, 25537)]