20489448720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6567131}}^1$

素因数の和:6567160

約数の個数: 80

約数和(自身を含む): 68403246912

約数和(自身を除く): 47913798192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6567131, 13134262, 19701393, 26268524, 32835655, 39402786, 52537048, 65671310, 78805572, 85372703, 98506965, 105074096, 131342620, 157611144, 170745406, 197013930, 256118109, 262685240, 315222288, 341490812, 394027860, 426863515, 512236218, 525370480, 682981624, 788055720, 853727030, 1024472436, 1280590545, 1365963248, 1576111440, 1707454060, 2048944872, 2561181090, 3414908120, 4097889744, 5122362180, 6829816240, 10244724360, 20489448720]

約数ペア:

[(1, 20489448720), (2, 10244724360), (3, 6829816240), (4, 5122362180), (5, 4097889744), (6, 3414908120), (8, 2561181090), (10, 2048944872), (12, 1707454060), (13, 1576111440), (15, 1365963248), (16, 1280590545), (20, 1024472436), (24, 853727030), (26, 788055720), (30, 682981624), (39, 525370480), (40, 512236218), (48, 426863515), (52, 394027860), (60, 341490812), (65, 315222288), (78, 262685240), (80, 256118109), (104, 197013930), (120, 170745406), (130, 157611144), (156, 131342620), (195, 105074096), (208, 98506965), (240, 85372703), (260, 78805572), (312, 65671310), (390, 52537048), (520, 39402786), (624, 32835655), (780, 26268524), (1040, 19701393), (1560, 13134262), (3120, 6567131)]