20163404360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{230281}}^1$

素因数の和:230502

約数の個数: 64

約数和(自身を含む): 49740912000

約数和(自身を除く): 29577507640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 398, 440, 796, 995, 1592, 1990, 2189, 3980, 4378, 7960, 8756, 10945, 17512, 21890, 43780, 87560, 230281, 460562, 921124, 1151405, 1842248, 2302810, 2533091, 4605620, 5066182, 9211240, 10132364, 12665455, 20264728, 25330910, 45825919, 50661820, 91651838, 101323640, 183303676, 229129595, 366607352, 458259190, 504085109, 916518380, 1008170218, 1833036760, 2016340436, 2520425545, 4032680872, 5040851090, 10081702180, 20163404360]

約数ペア:

[(1, 20163404360), (2, 10081702180), (4, 5040851090), (5, 4032680872), (8, 2520425545), (10, 2016340436), (11, 1833036760), (20, 1008170218), (22, 916518380), (40, 504085109), (44, 458259190), (55, 366607352), (88, 229129595), (110, 183303676), (199, 101323640), (220, 91651838), (398, 50661820), (440, 45825919), (796, 25330910), (995, 20264728), (1592, 12665455), (1990, 10132364), (2189, 9211240), (3980, 5066182), (4378, 4605620), (7960, 2533091), (8756, 2302810), (10945, 1842248), (17512, 1151405), (21890, 921124), (43780, 460562), (87560, 230281)]