278321000620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{259381}}^1\times {\mathrm{4127}}^1$

素因数の和:263530

約数の個数: 48

約数和(自身を含む): 629588590848

約数和(自身を除く): 351267590228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4127, 8254, 16508, 20635, 41270, 53651, 82540, 107302, 214604, 259381, 268255, 518762, 536510, 1037524, 1073020, 1296905, 2593810, 3371953, 5187620, 6743906, 13487812, 16859765, 33719530, 67439060, 1070465387, 2140930774, 4281861548, 5352326935, 10704653870, 13916050031, 21409307740, 27832100062, 55664200124, 69580250155, 139160500310, 278321000620]

約数ペア:

[(1, 278321000620), (2, 139160500310), (4, 69580250155), (5, 55664200124), (10, 27832100062), (13, 21409307740), (20, 13916050031), (26, 10704653870), (52, 5352326935), (65, 4281861548), (130, 2140930774), (260, 1070465387), (4127, 67439060), (8254, 33719530), (16508, 16859765), (20635, 13487812), (41270, 6743906), (53651, 5187620), (82540, 3371953), (107302, 2593810), (214604, 1296905), (259381, 1073020), (268255, 1037524), (518762, 536510)]