80816320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19427}}^1$

素因数の和:19457

約数の個数: 56

約数和(自身を含む): 207257904

約数和(自身を除く): 126441584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 19427, 38854, 77708, 97135, 155416, 194270, 252551, 310832, 388540, 505102, 621664, 777080, 1010204, 1243328, 1262755, 1554160, 2020408, 2525510, 3108320, 4040816, 5051020, 6216640, 8081632, 10102040, 16163264, 20204080, 40408160, 80816320]

約数ペア:

[(1, 80816320), (2, 40408160), (4, 20204080), (5, 16163264), (8, 10102040), (10, 8081632), (13, 6216640), (16, 5051020), (20, 4040816), (26, 3108320), (32, 2525510), (40, 2020408), (52, 1554160), (64, 1262755), (65, 1243328), (80, 1010204), (104, 777080), (130, 621664), (160, 505102), (208, 388540), (260, 310832), (320, 252551), (416, 194270), (520, 155416), (832, 97135), (1040, 77708), (2080, 38854), (4160, 19427)]