80810080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38851}}^1$

素因数の和:38879

約数の個数: 48

約数和(自身を含む): 205604784

約数和(自身を除く): 124794704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 38851, 77702, 155404, 194255, 310808, 388510, 505063, 621616, 777020, 1010126, 1243232, 1554040, 2020252, 2525315, 3108080, 4040504, 5050630, 6216160, 8081008, 10101260, 16162016, 20202520, 40405040, 80810080]

約数ペア:

[(1, 80810080), (2, 40405040), (4, 20202520), (5, 16162016), (8, 10101260), (10, 8081008), (13, 6216160), (16, 5050630), (20, 4040504), (26, 3108080), (32, 2525315), (40, 2020252), (52, 1554040), (65, 1243232), (80, 1010126), (104, 777020), (130, 621616), (160, 505063), (208, 388510), (260, 310808), (416, 194255), (520, 155404), (1040, 77702), (2080, 38851)]