71442860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 153753600

約数和(自身を除く): 82310740

約数列:

[1, 2, 4, 5, 10, 20, 79, 103, 158, 206, 316, 395, 412, 439, 515, 790, 878, 1030, 1580, 1756, 2060, 2195, 4390, 8137, 8780, 16274, 32548, 34681, 40685, 45217, 69362, 81370, 90434, 138724, 162740, 173405, 180868, 226085, 346810, 452170, 693620, 904340, 3572143, 7144286, 14288572, 17860715, 35721430, 71442860]

約数ペア:

[(1, 71442860), (2, 35721430), (4, 17860715), (5, 14288572), (10, 7144286), (20, 3572143), (79, 904340), (103, 693620), (158, 452170), (206, 346810), (316, 226085), (395, 180868), (412, 173405), (439, 162740), (515, 138724), (790, 90434), (878, 81370), (1030, 69362), (1580, 45217), (1756, 40685), (2060, 34681), (2195, 32548), (4390, 16274), (8137, 8780)]