1661620

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{331}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 3513888

約数和(自身を除く): 1852268

約数列:

[1, 2, 4, 5, 10, 20, 251, 331, 502, 662, 1004, 1255, 1324, 1655, 2510, 3310, 5020, 6620, 83081, 166162, 332324, 415405, 830810, 1661620]

約数ペア:

[(1, 1661620), (2, 830810), (4, 415405), (5, 332324), (10, 166162), (20, 83081), (251, 6620), (331, 5020), (502, 3310), (662, 2510), (1004, 1655), (1255, 1324)]