31156740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{967}}^1$

素因数の和:1161

約数の個数: 72

約数和(自身を含む): 95135040

約数和(自身を除く): 63978300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 895, 967, 1074, 1611, 1790, 1934, 2148, 2685, 2901, 3222, 3580, 3868, 4835, 5370, 5802, 6444, 8055, 8703, 9670, 10740, 11604, 14505, 16110, 17406, 19340, 29010, 32220, 34812, 43515, 58020, 87030, 173093, 174060, 346186, 519279, 692372, 865465, 1038558, 1557837, 1730930, 2077116, 2596395, 3115674, 3461860, 5192790, 6231348, 7789185, 10385580, 15578370, 31156740]

約数ペア:

[(1, 31156740), (2, 15578370), (3, 10385580), (4, 7789185), (5, 6231348), (6, 5192790), (9, 3461860), (10, 3115674), (12, 2596395), (15, 2077116), (18, 1730930), (20, 1557837), (30, 1038558), (36, 865465), (45, 692372), (60, 519279), (90, 346186), (179, 174060), (180, 173093), (358, 87030), (537, 58020), (716, 43515), (895, 34812), (967, 32220), (1074, 29010), (1611, 19340), (1790, 17406), (1934, 16110), (2148, 14505), (2685, 11604), (2901, 10740), (3222, 9670), (3580, 8703), (3868, 8055), (4835, 6444), (5370, 5802)]