30123380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2089}}^1$

素因数の和:2208

約数の個数: 48

約数和(自身を含む): 73032960

約数和(自身を除く): 42909580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2089, 2884, 3605, 4178, 7210, 8356, 10445, 14420, 14623, 20890, 29246, 41780, 58492, 73115, 146230, 215167, 292460, 430334, 860668, 1075835, 1506169, 2151670, 3012338, 4303340, 6024676, 7530845, 15061690, 30123380]

約数ペア:

[(1, 30123380), (2, 15061690), (4, 7530845), (5, 6024676), (7, 4303340), (10, 3012338), (14, 2151670), (20, 1506169), (28, 1075835), (35, 860668), (70, 430334), (103, 292460), (140, 215167), (206, 146230), (412, 73115), (515, 58492), (721, 41780), (1030, 29246), (1442, 20890), (2060, 14623), (2089, 14420), (2884, 10445), (3605, 8356), (4178, 7210)]