20438100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{22709}}^1$

素因数の和:22729

約数の個数: 54

約数和(自身を含む): 64064910

約数和(自身を除く): 43626810

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 22709, 45418, 68127, 90836, 113545, 136254, 204381, 227090, 272508, 340635, 408762, 454180, 567725, 681270, 817524, 1021905, 1135450, 1362540, 1703175, 2043810, 2270900, 3406350, 4087620, 5109525, 6812700, 10219050, 20438100]

約数ペア:

[(1, 20438100), (2, 10219050), (3, 6812700), (4, 5109525), (5, 4087620), (6, 3406350), (9, 2270900), (10, 2043810), (12, 1703175), (15, 1362540), (18, 1135450), (20, 1021905), (25, 817524), (30, 681270), (36, 567725), (45, 454180), (50, 408762), (60, 340635), (75, 272508), (90, 227090), (100, 204381), (150, 136254), (180, 113545), (225, 90836), (300, 68127), (450, 45418), (900, 22709)]