18283042040

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2320183}}^1$

素因数の和:2320391

約数の個数: 32

約数和(自身を含む): 41345678880

約数和(自身を除く): 23062636840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 2320183, 4640366, 9280732, 11600915, 18561464, 23201830, 46403660, 92807320, 457076051, 914152102, 1828304204, 2285380255, 3656608408, 4570760510, 9141521020, 18283042040]

約数ペア:

[(1, 18283042040), (2, 9141521020), (4, 4570760510), (5, 3656608408), (8, 2285380255), (10, 1828304204), (20, 914152102), (40, 457076051), (197, 92807320), (394, 46403660), (788, 23201830), (985, 18561464), (1576, 11600915), (1970, 9280732), (3940, 4640366), (7880, 2320183)]