15785780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 34245120

約数和(自身を除く): 18459340

約数列:

[1, 2, 4, 5, 10, 20, 79, 97, 103, 158, 194, 206, 316, 388, 395, 412, 485, 515, 790, 970, 1030, 1580, 1940, 2060, 7663, 8137, 9991, 15326, 16274, 19982, 30652, 32548, 38315, 39964, 40685, 49955, 76630, 81370, 99910, 153260, 162740, 199820, 789289, 1578578, 3157156, 3946445, 7892890, 15785780]

約数ペア:

[(1, 15785780), (2, 7892890), (4, 3946445), (5, 3157156), (10, 1578578), (20, 789289), (79, 199820), (97, 162740), (103, 153260), (158, 99910), (194, 81370), (206, 76630), (316, 49955), (388, 40685), (395, 39964), (412, 38315), (485, 32548), (515, 30652), (790, 19982), (970, 16274), (1030, 15326), (1580, 9991), (1940, 8137), (2060, 7663)]