231980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1657}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 557088

約数和(自身を除く): 325108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1657, 3314, 6628, 8285, 11599, 16570, 23198, 33140, 46396, 57995, 115990, 231980]

約数ペア:

[(1, 231980), (2, 115990), (4, 57995), (5, 46396), (7, 33140), (10, 23198), (14, 16570), (20, 11599), (28, 8285), (35, 6628), (70, 3314), (140, 1657)]