48741740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 104781600

約数和(自身を除く): 56039860

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 197, 278, 356, 394, 445, 556, 695, 788, 890, 985, 1390, 1780, 1970, 2780, 3940, 12371, 17533, 24742, 27383, 35066, 49484, 54766, 61855, 70132, 87665, 109532, 123710, 136915, 175330, 247420, 273830, 350660, 547660, 2437087, 4874174, 9748348, 12185435, 24370870, 48741740]

約数ペア:

[(1, 48741740), (2, 24370870), (4, 12185435), (5, 9748348), (10, 4874174), (20, 2437087), (89, 547660), (139, 350660), (178, 273830), (197, 247420), (278, 175330), (356, 136915), (394, 123710), (445, 109532), (556, 87665), (695, 70132), (788, 61855), (890, 54766), (985, 49484), (1390, 35066), (1780, 27383), (1970, 24742), (2780, 17533), (3940, 12371)]