20178558544

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{288661}}^1$

素因数の和:288943

約数の個数: 40

約数和(自身を含む): 41556936168

約数和(自身を除く): 21378377624

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 257, 272, 514, 1028, 2056, 4112, 4369, 8738, 17476, 34952, 69904, 288661, 577322, 1154644, 2309288, 4618576, 4907237, 9814474, 19628948, 39257896, 74185877, 78515792, 148371754, 296743508, 593487016, 1186974032, 1261159909, 2522319818, 5044639636, 10089279272, 20178558544]

約数ペア:

[(1, 20178558544), (2, 10089279272), (4, 5044639636), (8, 2522319818), (16, 1261159909), (17, 1186974032), (34, 593487016), (68, 296743508), (136, 148371754), (257, 78515792), (272, 74185877), (514, 39257896), (1028, 19628948), (2056, 9814474), (4112, 4907237), (4369, 4618576), (8738, 2309288), (17476, 1154644), (34952, 577322), (69904, 288661)]