645813264

素因数分解:

$2^4\times 3^1\times {\mathrm{13454443}}^1$

素因数の和:13454454

約数の個数: 20

約数和(自身を含む): 1668351056

約数和(自身を除く): 1022537792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13454443, 26908886, 40363329, 53817772, 80726658, 107635544, 161453316, 215271088, 322906632, 645813264]

約数ペア:

[(1, 645813264), (2, 322906632), (3, 215271088), (4, 161453316), (6, 107635544), (8, 80726658), (12, 53817772), (16, 40363329), (24, 26908886), (48, 13454443)]