19795168

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 40960080

約数和(自身を除く): 21164912

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 83, 116, 166, 232, 257, 332, 464, 514, 664, 928, 1028, 1328, 2056, 2407, 2656, 4112, 4814, 7453, 8224, 9628, 14906, 19256, 21331, 29812, 38512, 42662, 59624, 77024, 85324, 119248, 170648, 238496, 341296, 618599, 682592, 1237198, 2474396, 4948792, 9897584, 19795168]

約数ペア:

[(1, 19795168), (2, 9897584), (4, 4948792), (8, 2474396), (16, 1237198), (29, 682592), (32, 618599), (58, 341296), (83, 238496), (116, 170648), (166, 119248), (232, 85324), (257, 77024), (332, 59624), (464, 42662), (514, 38512), (664, 29812), (928, 21331), (1028, 19256), (1328, 14906), (2056, 9628), (2407, 8224), (2656, 7453), (4112, 4814)]