86781260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{255239}}^1$

素因数の和:255265

約数の個数: 24

約数和(自身を含む): 192961440

約数和(自身を除く): 106180180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 255239, 510478, 1020956, 1276195, 2552390, 4339063, 5104780, 8678126, 17356252, 21695315, 43390630, 86781260]

約数ペア:

[(1, 86781260), (2, 43390630), (4, 21695315), (5, 17356252), (10, 8678126), (17, 5104780), (20, 4339063), (34, 2552390), (68, 1276195), (85, 1020956), (170, 510478), (340, 255239)]