68580620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 146989920

約数和(自身を除く): 78409300

約数列:

[1, 2, 4, 5, 10, 20, 109, 163, 193, 218, 326, 386, 436, 545, 652, 772, 815, 965, 1090, 1630, 1930, 2180, 3260, 3860, 17767, 21037, 31459, 35534, 42074, 62918, 71068, 84148, 88835, 105185, 125836, 157295, 177670, 210370, 314590, 355340, 420740, 629180, 3429031, 6858062, 13716124, 17145155, 34290310, 68580620]

約数ペア:

[(1, 68580620), (2, 34290310), (4, 17145155), (5, 13716124), (10, 6858062), (20, 3429031), (109, 629180), (163, 420740), (193, 355340), (218, 314590), (326, 210370), (386, 177670), (436, 157295), (545, 125836), (652, 105185), (772, 88835), (815, 84148), (965, 71068), (1090, 62918), (1630, 42074), (1930, 35534), (2180, 31459), (3260, 21037), (3860, 17767)]