31861520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6529}}^1$

素因数の和:6603

約数の個数: 40

約数和(自身を含む): 75303960

約数和(自身を除く): 43442440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 6529, 13058, 26116, 32645, 52232, 65290, 104464, 130580, 261160, 398269, 522320, 796538, 1593076, 1991345, 3186152, 3982690, 6372304, 7965380, 15930760, 31861520]

約数ペア:

[(1, 31861520), (2, 15930760), (4, 7965380), (5, 6372304), (8, 3982690), (10, 3186152), (16, 1991345), (20, 1593076), (40, 796538), (61, 522320), (80, 398269), (122, 261160), (244, 130580), (305, 104464), (488, 65290), (610, 52232), (976, 32645), (1220, 26116), (2440, 13058), (4880, 6529)]