138012620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{222601}}^1$

素因数の和:222641

約数の個数: 24

約数和(自身を含む): 299177088

約数和(自身を除く): 161164468

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 222601, 445202, 890404, 1113005, 2226010, 4452020, 6900631, 13801262, 27602524, 34503155, 69006310, 138012620]

約数ペア:

[(1, 138012620), (2, 69006310), (4, 34503155), (5, 27602524), (10, 13801262), (20, 6900631), (31, 4452020), (62, 2226010), (124, 1113005), (155, 890404), (310, 445202), (620, 222601)]