90402940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{265891}}^1$

素因数の和:265917

約数の個数: 24

約数和(自身を含む): 201014352

約数和(自身を除く): 110611412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 265891, 531782, 1063564, 1329455, 2658910, 4520147, 5317820, 9040294, 18080588, 22600735, 45201470, 90402940]

約数ペア:

[(1, 90402940), (2, 45201470), (4, 22600735), (5, 18080588), (10, 9040294), (17, 5317820), (20, 4520147), (34, 2658910), (68, 1329455), (85, 1063564), (170, 531782), (340, 265891)]