18384040

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2333}}^1$

素因数の和:2541

約数の個数: 32

約数和(自身を含む): 41591880

約数和(自身を除く): 23207840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2333, 3940, 4666, 7880, 9332, 11665, 18664, 23330, 46660, 93320, 459601, 919202, 1838404, 2298005, 3676808, 4596010, 9192020, 18384040]

約数ペア:

[(1, 18384040), (2, 9192020), (4, 4596010), (5, 3676808), (8, 2298005), (10, 1838404), (20, 919202), (40, 459601), (197, 93320), (394, 46660), (788, 23330), (985, 18664), (1576, 11665), (1970, 9332), (2333, 7880), (3940, 4666)]