81880492420

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{6812021}}^1$

素因数の和:6812631

約数の個数: 24

約数和(自身を含む): 172235164248

約数和(自身を除く): 90354671828

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 2404, 3005, 6010, 12020, 6812021, 13624042, 27248084, 34060105, 68120210, 136240420, 4094024621, 8188049242, 16376098484, 20470123105, 40940246210, 81880492420]

約数ペア:

[(1, 81880492420), (2, 40940246210), (4, 20470123105), (5, 16376098484), (10, 8188049242), (20, 4094024621), (601, 136240420), (1202, 68120210), (2404, 34060105), (3005, 27248084), (6010, 13624042), (12020, 6812021)]