821024425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{839}}^1\times {\mathrm{3011}}^1$

素因数の和:3873

約数の個数: 24

約数和(自身を含む): 1098054720

約数和(自身を除く): 277030295

約数列:

[1, 5, 13, 25, 65, 325, 839, 3011, 4195, 10907, 15055, 20975, 39143, 54535, 75275, 195715, 272675, 978575, 2526229, 12631145, 32840977, 63155725, 164204885, 821024425]

約数ペア:

[(1, 821024425), (5, 164204885), (13, 63155725), (25, 32840977), (65, 12631145), (325, 2526229), (839, 978575), (3011, 272675), (4195, 195715), (10907, 75275), (15055, 54535), (20975, 39143)]