81141520

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{17191}}^1$

素因数の和:17263

約数の個数: 40

約数和(自身を含む): 191862720

約数和(自身を除く): 110721200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 17191, 34382, 68764, 85955, 137528, 171910, 275056, 343820, 687640, 1014269, 1375280, 2028538, 4057076, 5071345, 8114152, 10142690, 16228304, 20285380, 40570760, 81141520]

約数ペア:

[(1, 81141520), (2, 40570760), (4, 20285380), (5, 16228304), (8, 10142690), (10, 8114152), (16, 5071345), (20, 4057076), (40, 2028538), (59, 1375280), (80, 1014269), (118, 687640), (236, 343820), (295, 275056), (472, 171910), (590, 137528), (944, 85955), (1180, 68764), (2360, 34382), (4720, 17191)]