20809923780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2647573}}^1$

素因数の和:2647716

約数の個数: 48

約数和(自身を含む): 58712601024

約数和(自身を除く): 37902677244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 3930, 7860, 2647573, 5295146, 7942719, 10590292, 13237865, 15885438, 26475730, 31770876, 39713595, 52951460, 79427190, 158854380, 346832063, 693664126, 1040496189, 1387328252, 1734160315, 2080992378, 3468320630, 4161984756, 5202480945, 6936641260, 10404961890, 20809923780]

約数ペア:

[(1, 20809923780), (2, 10404961890), (3, 6936641260), (4, 5202480945), (5, 4161984756), (6, 3468320630), (10, 2080992378), (12, 1734160315), (15, 1387328252), (20, 1040496189), (30, 693664126), (60, 346832063), (131, 158854380), (262, 79427190), (393, 52951460), (524, 39713595), (655, 31770876), (786, 26475730), (1310, 15885438), (1572, 13237865), (1965, 10590292), (2620, 7942719), (3930, 5295146), (7860, 2647573)]