289772975

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{21911}}^1$

素因数の和:21967

約数の個数: 18

約数和(自身を含む): 375637416

約数和(自身を除く): 85864441

約数列:

[1, 5, 23, 25, 115, 529, 575, 2645, 13225, 21911, 109555, 503953, 547775, 2519765, 11590919, 12598825, 57954595, 289772975]

約数ペア:

[(1, 289772975), (5, 57954595), (23, 12598825), (25, 11590919), (115, 2519765), (529, 547775), (575, 503953), (2645, 109555), (13225, 21911)]