18745687568

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{811}}^1\times {\mathrm{84979}}^1$

素因数の和:85815

約数の個数: 40

約数和(自身を含む): 38504098080

約数和(自身を除く): 19758410512

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 811, 1622, 3244, 6488, 12976, 13787, 27574, 55148, 84979, 110296, 169958, 220592, 339916, 679832, 1359664, 1444643, 2889286, 5778572, 11557144, 23114288, 68917969, 137835938, 275671876, 551343752, 1102687504, 1171605473, 2343210946, 4686421892, 9372843784, 18745687568]

約数ペア:

[(1, 18745687568), (2, 9372843784), (4, 4686421892), (8, 2343210946), (16, 1171605473), (17, 1102687504), (34, 551343752), (68, 275671876), (136, 137835938), (272, 68917969), (811, 23114288), (1622, 11557144), (3244, 5778572), (6488, 2889286), (12976, 1444643), (13787, 1359664), (27574, 679832), (55148, 339916), (84979, 220592), (110296, 169958)]