25440376720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28909519}}^1$

素因数の和:28909543

約数の個数: 40

約数和(自身を含む): 64526048640

約数和(自身を除く): 39085671920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 28909519, 57819038, 115638076, 144547595, 231276152, 289095190, 318004709, 462552304, 578190380, 636009418, 1156380760, 1272018836, 1590023545, 2312761520, 2544037672, 3180047090, 5088075344, 6360094180, 12720188360, 25440376720]

約数ペア:

[(1, 25440376720), (2, 12720188360), (4, 6360094180), (5, 5088075344), (8, 3180047090), (10, 2544037672), (11, 2312761520), (16, 1590023545), (20, 1272018836), (22, 1156380760), (40, 636009418), (44, 578190380), (55, 462552304), (80, 318004709), (88, 289095190), (110, 231276152), (176, 144547595), (220, 115638076), (440, 57819038), (880, 28909519)]