19603420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{463}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 43263360

約数和(自身を除く): 23659940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 463, 580, 730, 926, 1460, 1852, 2117, 2315, 4234, 4630, 8468, 9260, 10585, 13427, 21170, 26854, 33799, 42340, 53708, 67135, 67598, 134270, 135196, 168995, 268540, 337990, 675980, 980171, 1960342, 3920684, 4900855, 9801710, 19603420]

約数ペア:

[(1, 19603420), (2, 9801710), (4, 4900855), (5, 3920684), (10, 1960342), (20, 980171), (29, 675980), (58, 337990), (73, 268540), (116, 168995), (145, 135196), (146, 134270), (290, 67598), (292, 67135), (365, 53708), (463, 42340), (580, 33799), (730, 26854), (926, 21170), (1460, 13427), (1852, 10585), (2117, 9260), (2315, 8468), (4234, 4630)]