20401060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 46347840

約数和(自身を除く): 25946780

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 1451, 2812, 2902, 3515, 5804, 7030, 7255, 14060, 14510, 27569, 29020, 53687, 55138, 107374, 110276, 137845, 214748, 268435, 275690, 536870, 551380, 1020053, 1073740, 2040106, 4080212, 5100265, 10200530, 20401060]

約数ペア:

[(1, 20401060), (2, 10200530), (4, 5100265), (5, 4080212), (10, 2040106), (19, 1073740), (20, 1020053), (37, 551380), (38, 536870), (74, 275690), (76, 268435), (95, 214748), (148, 137845), (185, 110276), (190, 107374), (370, 55138), (380, 53687), (703, 29020), (740, 27569), (1406, 14510), (1451, 14060), (2812, 7255), (2902, 7030), (3515, 5804)]