26001340

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 30446660

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 139, 188, 199, 235, 278, 398, 470, 556, 695, 796, 940, 995, 1390, 1990, 2780, 3980, 6533, 9353, 13066, 18706, 26132, 27661, 32665, 37412, 46765, 55322, 65330, 93530, 110644, 130660, 138305, 187060, 276610, 553220, 1300067, 2600134, 5200268, 6500335, 13000670, 26001340]

約数ペア:

[(1, 26001340), (2, 13000670), (4, 6500335), (5, 5200268), (10, 2600134), (20, 1300067), (47, 553220), (94, 276610), (139, 187060), (188, 138305), (199, 130660), (235, 110644), (278, 93530), (398, 65330), (470, 55322), (556, 46765), (695, 37412), (796, 32665), (940, 27661), (995, 26132), (1390, 18706), (1990, 13066), (2780, 9353), (3980, 6533)]