6405620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 14732928

約数和(自身を除く): 8327308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 347, 355, 694, 710, 923, 1388, 1420, 1735, 1846, 3470, 3692, 4511, 4615, 6940, 9022, 9230, 18044, 18460, 22555, 24637, 45110, 49274, 90220, 98548, 123185, 246370, 320281, 492740, 640562, 1281124, 1601405, 3202810, 6405620]

約数ペア:

[(1, 6405620), (2, 3202810), (4, 1601405), (5, 1281124), (10, 640562), (13, 492740), (20, 320281), (26, 246370), (52, 123185), (65, 98548), (71, 90220), (130, 49274), (142, 45110), (260, 24637), (284, 22555), (347, 18460), (355, 18044), (694, 9230), (710, 9022), (923, 6940), (1388, 4615), (1420, 4511), (1735, 3692), (1846, 3470)]