28970390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{757}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 54030240

約数和(自身を除く): 25059850

約数列:

[1, 2, 5, 10, 43, 86, 89, 178, 215, 430, 445, 757, 890, 1514, 3785, 3827, 7570, 7654, 19135, 32551, 38270, 65102, 67373, 134746, 162755, 325510, 336865, 673730, 2897039, 5794078, 14485195, 28970390]

約数ペア:

[(1, 28970390), (2, 14485195), (5, 5794078), (10, 2897039), (43, 673730), (86, 336865), (89, 325510), (178, 162755), (215, 134746), (430, 67373), (445, 65102), (757, 38270), (890, 32551), (1514, 19135), (3785, 7654), (3827, 7570)]