1800890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1979}}^1$

素因数の和:2006

約数の個数: 32

約数和(自身を含む): 3991680

約数和(自身を除く): 2190790

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 1979, 3958, 9895, 13853, 19790, 25727, 27706, 51454, 69265, 128635, 138530, 180089, 257270, 360178, 900445, 1800890]

約数ペア:

[(1, 1800890), (2, 900445), (5, 360178), (7, 257270), (10, 180089), (13, 138530), (14, 128635), (26, 69265), (35, 51454), (65, 27706), (70, 25727), (91, 19790), (130, 13853), (182, 9895), (455, 3958), (910, 1979)]