15781120

素因数分解:

$2^8\times 5^1\times {\mathrm{12329}}^1$

素因数の和:12350

約数の個数: 36

約数和(自身を含む): 37803780

約数和(自身を除く): 22022660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 12329, 24658, 49316, 61645, 98632, 123290, 197264, 246580, 394528, 493160, 789056, 986320, 1578112, 1972640, 3156224, 3945280, 7890560, 15781120]

約数ペア:

[(1, 15781120), (2, 7890560), (4, 3945280), (5, 3156224), (8, 1972640), (10, 1578112), (16, 986320), (20, 789056), (32, 493160), (40, 394528), (64, 246580), (80, 197264), (128, 123290), (160, 98632), (256, 61645), (320, 49316), (640, 24658), (1280, 12329)]