64942760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{85451}}^1$

素因数の和:85481

約数の個数: 32

約数和(自身を含む): 153813600

約数和(自身を除く): 88870840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 85451, 170902, 341804, 427255, 683608, 854510, 1623569, 1709020, 3247138, 3418040, 6494276, 8117845, 12988552, 16235690, 32471380, 64942760]

約数ペア:

[(1, 64942760), (2, 32471380), (4, 16235690), (5, 12988552), (8, 8117845), (10, 6494276), (19, 3418040), (20, 3247138), (38, 1709020), (40, 1623569), (76, 854510), (95, 683608), (152, 427255), (190, 341804), (380, 170902), (760, 85451)]