80268340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{56527}}^1$

素因数の和:56607

約数の個数: 24

約数和(自身を含む): 170940672

約数和(自身を除く): 90672332

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 56527, 113054, 226108, 282635, 565270, 1130540, 4013417, 8026834, 16053668, 20067085, 40134170, 80268340]

約数ペア:

[(1, 80268340), (2, 40134170), (4, 20067085), (5, 16053668), (10, 8026834), (20, 4013417), (71, 1130540), (142, 565270), (284, 282635), (355, 226108), (710, 113054), (1420, 56527)]