11989060

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8443}}^1$

素因数の和:8523

約数の個数: 24

約数和(自身を含む): 25534656

約数和(自身を除く): 13545596

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8443, 16886, 33772, 42215, 84430, 168860, 599453, 1198906, 2397812, 2997265, 5994530, 11989060]

約数ペア:

[(1, 11989060), (2, 5994530), (4, 2997265), (5, 2397812), (10, 1198906), (20, 599453), (71, 168860), (142, 84430), (284, 42215), (355, 33772), (710, 16886), (1420, 8443)]