9989120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{1951}}^1$

素因数の和:1976

約数の個数: 44

約数和(自身を含む): 23974464

約数和(自身を除く): 13985344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1951, 2560, 3902, 5120, 7804, 9755, 15608, 19510, 31216, 39020, 62432, 78040, 124864, 156080, 249728, 312160, 499456, 624320, 998912, 1248640, 1997824, 2497280, 4994560, 9989120]

約数ペア:

[(1, 9989120), (2, 4994560), (4, 2497280), (5, 1997824), (8, 1248640), (10, 998912), (16, 624320), (20, 499456), (32, 312160), (40, 249728), (64, 156080), (80, 124864), (128, 78040), (160, 62432), (256, 39020), (320, 31216), (512, 19510), (640, 15608), (1024, 9755), (1280, 7804), (1951, 5120), (2560, 3902)]