307880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 712800

約数和(自身を除く): 404920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 179, 215, 344, 358, 430, 716, 860, 895, 1432, 1720, 1790, 3580, 7160, 7697, 15394, 30788, 38485, 61576, 76970, 153940, 307880]

約数ペア:

[(1, 307880), (2, 153940), (4, 76970), (5, 61576), (8, 38485), (10, 30788), (20, 15394), (40, 7697), (43, 7160), (86, 3580), (172, 1790), (179, 1720), (215, 1432), (344, 895), (358, 860), (430, 716)]