20218250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6221}}^1$

素因数の和:6251

約数の個数: 32

約数和(自身を含む): 40766544

約数和(自身を除く): 20548294

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6221, 12442, 31105, 62210, 80873, 155525, 161746, 311050, 404365, 777625, 808730, 1555250, 2021825, 4043650, 10109125, 20218250]

約数ペア:

[(1, 20218250), (2, 10109125), (5, 4043650), (10, 2021825), (13, 1555250), (25, 808730), (26, 777625), (50, 404365), (65, 311050), (125, 161746), (130, 155525), (250, 80873), (325, 62210), (650, 31105), (1625, 12442), (3250, 6221)]