64888760

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{2851}}^1$

素因数の和:3431

約数の個数: 32

約数和(自身を含む): 146307600

約数和(自身を除く): 81418840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 2276, 2845, 2851, 4552, 5690, 5702, 11380, 11404, 14255, 22760, 22808, 28510, 57020, 114040, 1622219, 3244438, 6488876, 8111095, 12977752, 16222190, 32444380, 64888760]

約数ペア:

[(1, 64888760), (2, 32444380), (4, 16222190), (5, 12977752), (8, 8111095), (10, 6488876), (20, 3244438), (40, 1622219), (569, 114040), (1138, 57020), (2276, 28510), (2845, 22808), (2851, 22760), (4552, 14255), (5690, 11404), (5702, 11380)]