20459025

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1151}}^1$

素因数の和:1246

約数の個数: 36

約数和(自身を含む): 37140480

約数和(自身を除く): 16681455

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 225, 237, 395, 711, 1151, 1185, 1975, 3453, 3555, 5755, 5925, 10359, 17265, 17775, 28775, 51795, 86325, 90929, 258975, 272787, 454645, 818361, 1363935, 2273225, 4091805, 6819675, 20459025]

約数ペア:

[(1, 20459025), (3, 6819675), (5, 4091805), (9, 2273225), (15, 1363935), (25, 818361), (45, 454645), (75, 272787), (79, 258975), (225, 90929), (237, 86325), (395, 51795), (711, 28775), (1151, 17775), (1185, 17265), (1975, 10359), (3453, 5925), (3555, 5755)]