220052840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{785903}}^1$

素因数の和:785921

約数の個数: 32

約数和(自身を含む): 565850880

約数和(自身を除く): 345798040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 785903, 1571806, 3143612, 3929515, 5501321, 6287224, 7859030, 11002642, 15718060, 22005284, 27506605, 31436120, 44010568, 55013210, 110026420, 220052840]

約数ペア:

[(1, 220052840), (2, 110026420), (4, 55013210), (5, 44010568), (7, 31436120), (8, 27506605), (10, 22005284), (14, 15718060), (20, 11002642), (28, 7859030), (35, 6287224), (40, 5501321), (56, 3929515), (70, 3143612), (140, 1571806), (280, 785903)]