66442160

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10513}}^1$

素因数の和:10605

約数の個数: 40

約数和(自身を含む): 156448320

約数和(自身を除く): 90006160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 10513, 21026, 42052, 52565, 84104, 105130, 168208, 210260, 420520, 830527, 841040, 1661054, 3322108, 4152635, 6644216, 8305270, 13288432, 16610540, 33221080, 66442160]

約数ペア:

[(1, 66442160), (2, 33221080), (4, 16610540), (5, 13288432), (8, 8305270), (10, 6644216), (16, 4152635), (20, 3322108), (40, 1661054), (79, 841040), (80, 830527), (158, 420520), (316, 210260), (395, 168208), (632, 105130), (790, 84104), (1264, 52565), (1580, 42052), (3160, 21026), (6320, 10513)]