64355240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39241}}^1$

素因数の和:39293

約数の個数: 32

約数和(自身を含む): 148334760

約数和(自身を除く): 83979520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39241, 78482, 156964, 196205, 313928, 392410, 784820, 1569640, 1608881, 3217762, 6435524, 8044405, 12871048, 16088810, 32177620, 64355240]

約数ペア:

[(1, 64355240), (2, 32177620), (4, 16088810), (5, 12871048), (8, 8044405), (10, 6435524), (20, 3217762), (40, 1608881), (41, 1569640), (82, 784820), (164, 392410), (205, 313928), (328, 196205), (410, 156964), (820, 78482), (1640, 39241)]