18930640

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2851}}^1$

素因数の和:2947

約数の個数: 40

約数和(自身を含む): 44559648

約数和(自身を除く): 25629008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2851, 3320, 5702, 6640, 11404, 14255, 22808, 28510, 45616, 57020, 114040, 228080, 236633, 473266, 946532, 1183165, 1893064, 2366330, 3786128, 4732660, 9465320, 18930640]

約数ペア:

[(1, 18930640), (2, 9465320), (4, 4732660), (5, 3786128), (8, 2366330), (10, 1893064), (16, 1183165), (20, 946532), (40, 473266), (80, 236633), (83, 228080), (166, 114040), (332, 57020), (415, 45616), (664, 28510), (830, 22808), (1328, 14255), (1660, 11404), (2851, 6640), (3320, 5702)]