260661640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{6781}}^1$

素因数の和:6854

約数の個数: 48

約数和(自身を含む): 606107340

約数和(自身を除く): 345445700

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 6781, 7688, 9610, 13562, 19220, 27124, 33905, 38440, 54248, 67810, 135620, 210211, 271240, 420422, 840844, 1051055, 1681688, 2102110, 4204220, 6516541, 8408440, 13033082, 26066164, 32582705, 52132328, 65165410, 130330820, 260661640]

約数ペア:

[(1, 260661640), (2, 130330820), (4, 65165410), (5, 52132328), (8, 32582705), (10, 26066164), (20, 13033082), (31, 8408440), (40, 6516541), (62, 4204220), (124, 2102110), (155, 1681688), (248, 1051055), (310, 840844), (620, 420422), (961, 271240), (1240, 210211), (1922, 135620), (3844, 67810), (4805, 54248), (6781, 38440), (7688, 33905), (9610, 27124), (13562, 19220)]