31253872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 69995520

約数和(自身を除く): 38741648

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 47, 52, 92, 94, 104, 139, 184, 188, 208, 278, 299, 368, 376, 556, 598, 611, 752, 1081, 1112, 1196, 1222, 1807, 2162, 2224, 2392, 2444, 3197, 3614, 4324, 4784, 4888, 6394, 6533, 7228, 8648, 9776, 12788, 13066, 14053, 14456, 17296, 25576, 26132, 28106, 28912, 41561, 51152, 52264, 56212, 83122, 84929, 104528, 112424, 150259, 166244, 169858, 224848, 300518, 332488, 339716, 601036, 664976, 679432, 1202072, 1358864, 1953367, 2404144, 3906734, 7813468, 15626936, 31253872]

約数ペア:

[(1, 31253872), (2, 15626936), (4, 7813468), (8, 3906734), (13, 2404144), (16, 1953367), (23, 1358864), (26, 1202072), (46, 679432), (47, 664976), (52, 601036), (92, 339716), (94, 332488), (104, 300518), (139, 224848), (184, 169858), (188, 166244), (208, 150259), (278, 112424), (299, 104528), (368, 84929), (376, 83122), (556, 56212), (598, 52264), (611, 51152), (752, 41561), (1081, 28912), (1112, 28106), (1196, 26132), (1222, 25576), (1807, 17296), (2162, 14456), (2224, 14053), (2392, 13066), (2444, 12788), (3197, 9776), (3614, 8648), (4324, 7228), (4784, 6533), (4888, 6394)]