64691840

素因数分解:

$2^7\times 5^1\times {\mathrm{101081}}^1$

素因数の和:101100

約数の個数: 32

約数和(自身を含む): 154655460

約数和(自身を除く): 89963620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 101081, 202162, 404324, 505405, 808648, 1010810, 1617296, 2021620, 3234592, 4043240, 6469184, 8086480, 12938368, 16172960, 32345920, 64691840]

約数ペア:

[(1, 64691840), (2, 32345920), (4, 16172960), (5, 12938368), (8, 8086480), (10, 6469184), (16, 4043240), (20, 3234592), (32, 2021620), (40, 1617296), (64, 1010810), (80, 808648), (128, 505405), (160, 404324), (320, 202162), (640, 101081)]