39978964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 77414400

約数和(自身を除く): 37435436

約数列:

[1, 2, 4, 19, 31, 38, 62, 71, 76, 124, 142, 239, 284, 478, 589, 956, 1178, 1349, 2201, 2356, 2698, 4402, 4541, 5396, 7409, 8804, 9082, 14818, 16969, 18164, 29636, 33938, 41819, 67876, 83638, 140771, 167276, 281542, 322411, 526039, 563084, 644822, 1052078, 1289644, 2104156, 9994741, 19989482, 39978964]

約数ペア:

[(1, 39978964), (2, 19989482), (4, 9994741), (19, 2104156), (31, 1289644), (38, 1052078), (62, 644822), (71, 563084), (76, 526039), (124, 322411), (142, 281542), (239, 167276), (284, 140771), (478, 83638), (589, 67876), (956, 41819), (1178, 33938), (1349, 29636), (2201, 18164), (2356, 16969), (2698, 14818), (4402, 9082), (4541, 8804), (5396, 7409)]