31123480

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2053}}^1$

素因数の和:2443

約数の個数: 32

約数和(自身を含む): 70246800

約数和(自身を除く): 39123320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 2053, 3032, 3790, 4106, 7580, 8212, 10265, 15160, 16424, 20530, 41060, 82120, 778087, 1556174, 3112348, 3890435, 6224696, 7780870, 15561740, 31123480]

約数ペア:

[(1, 31123480), (2, 15561740), (4, 7780870), (5, 6224696), (8, 3890435), (10, 3112348), (20, 1556174), (40, 778087), (379, 82120), (758, 41060), (1516, 20530), (1895, 16424), (2053, 15160), (3032, 10265), (3790, 8212), (4106, 7580)]