402376120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113027}}^1$

素因数の和:113127

約数の個数: 32

約数和(自身を含む): 915526800

約数和(自身を除く): 513150680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 113027, 226054, 452108, 565135, 904216, 1130270, 2260540, 4521080, 10059403, 20118806, 40237612, 50297015, 80475224, 100594030, 201188060, 402376120]

約数ペア:

[(1, 402376120), (2, 201188060), (4, 100594030), (5, 80475224), (8, 50297015), (10, 40237612), (20, 20118806), (40, 10059403), (89, 4521080), (178, 2260540), (356, 1130270), (445, 904216), (712, 565135), (890, 452108), (1780, 226054), (3560, 113027)]