31880288

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 71664264

約数和(自身を除く): 39783976

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 47, 82, 88, 94, 164, 176, 188, 328, 352, 376, 451, 517, 656, 752, 902, 1034, 1312, 1504, 1804, 1927, 2068, 2209, 3608, 3854, 4136, 4418, 7216, 7708, 8272, 8836, 14432, 15416, 16544, 17672, 21197, 24299, 30832, 35344, 42394, 48598, 61664, 70688, 84788, 90569, 97196, 169576, 181138, 194392, 339152, 362276, 388784, 678304, 724552, 777568, 996259, 1449104, 1992518, 2898208, 3985036, 7970072, 15940144, 31880288]

約数ペア:

[(1, 31880288), (2, 15940144), (4, 7970072), (8, 3985036), (11, 2898208), (16, 1992518), (22, 1449104), (32, 996259), (41, 777568), (44, 724552), (47, 678304), (82, 388784), (88, 362276), (94, 339152), (164, 194392), (176, 181138), (188, 169576), (328, 97196), (352, 90569), (376, 84788), (451, 70688), (517, 61664), (656, 48598), (752, 42394), (902, 35344), (1034, 30832), (1312, 24299), (1504, 21197), (1804, 17672), (1927, 16544), (2068, 15416), (2209, 14432), (3608, 8836), (3854, 8272), (4136, 7708), (4418, 7216)]