138972380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{224149}}^1$

素因数の和:224189

約数の個数: 24

約数和(自身を含む): 301257600

約数和(自身を除く): 162285220

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 224149, 448298, 896596, 1120745, 2241490, 4482980, 6948619, 13897238, 27794476, 34743095, 69486190, 138972380]

約数ペア:

[(1, 138972380), (2, 69486190), (4, 34743095), (5, 27794476), (10, 13897238), (20, 6948619), (31, 4482980), (62, 2241490), (124, 1120745), (155, 896596), (310, 448298), (620, 224149)]