205284775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{21001}}^1$

素因数の和:21051

約数の個数: 24

約数和(自身を含む): 281258784

約数和(自身を除く): 75974009

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 9775, 21001, 105005, 357017, 483023, 525025, 1785085, 2415115, 8211391, 8925425, 12075575, 41056955, 205284775]

約数ペア:

[(1, 205284775), (5, 41056955), (17, 12075575), (23, 8925425), (25, 8211391), (85, 2415115), (115, 1785085), (391, 525025), (425, 483023), (575, 357017), (1955, 105005), (9775, 21001)]