808120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 1846800

約数和(自身を除く): 1038680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 227, 356, 445, 454, 712, 890, 908, 1135, 1780, 1816, 2270, 3560, 4540, 9080, 20203, 40406, 80812, 101015, 161624, 202030, 404060, 808120]

約数ペア:

[(1, 808120), (2, 404060), (4, 202030), (5, 161624), (8, 101015), (10, 80812), (20, 40406), (40, 20203), (89, 9080), (178, 4540), (227, 3560), (356, 2270), (445, 1816), (454, 1780), (712, 1135), (890, 908)]