9038840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2539}}^1$

素因数の和:2639

約数の個数: 32

約数和(自身を含む): 20574000

約数和(自身を除く): 11535160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2539, 3560, 5078, 10156, 12695, 20312, 25390, 50780, 101560, 225971, 451942, 903884, 1129855, 1807768, 2259710, 4519420, 9038840]

約数ペア:

[(1, 9038840), (2, 4519420), (4, 2259710), (5, 1807768), (8, 1129855), (10, 903884), (20, 451942), (40, 225971), (89, 101560), (178, 50780), (356, 25390), (445, 20312), (712, 12695), (890, 10156), (1780, 5078), (2539, 3560)]