2513780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 5617920

約数和(自身を除く): 3104140

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 79, 86, 148, 158, 172, 185, 215, 316, 370, 395, 430, 740, 790, 860, 1580, 1591, 2923, 3182, 3397, 5846, 6364, 6794, 7955, 11692, 13588, 14615, 15910, 16985, 29230, 31820, 33970, 58460, 67940, 125689, 251378, 502756, 628445, 1256890, 2513780]

約数ペア:

[(1, 2513780), (2, 1256890), (4, 628445), (5, 502756), (10, 251378), (20, 125689), (37, 67940), (43, 58460), (74, 33970), (79, 31820), (86, 29230), (148, 16985), (158, 15910), (172, 14615), (185, 13588), (215, 11692), (316, 7955), (370, 6794), (395, 6364), (430, 5846), (740, 3397), (790, 3182), (860, 2923), (1580, 1591)]