64895680

素因数分解:

$2^6\times 5^1\times {\mathrm{202799}}^1$

素因数の和:202816

約数の個数: 28

約数和(自身を含む): 154533600

約数和(自身を除く): 89637920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 202799, 405598, 811196, 1013995, 1622392, 2027990, 3244784, 4055980, 6489568, 8111960, 12979136, 16223920, 32447840, 64895680]

約数ペア:

[(1, 64895680), (2, 32447840), (4, 16223920), (5, 12979136), (8, 8111960), (10, 6489568), (16, 4055980), (20, 3244784), (32, 2027990), (40, 1622392), (64, 1013995), (80, 811196), (160, 405598), (320, 202799)]