20408968294

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{288907}}^1$

素因数の和:288965

約数の個数: 48

約数和(自身を含む): 38066518080

約数和(自身を除く): 17657549786

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 143, 169, 209, 247, 286, 338, 418, 494, 1859, 2717, 3211, 3718, 5434, 6422, 35321, 70642, 288907, 577814, 3177977, 3755791, 5489233, 6355954, 7511582, 10978466, 41313701, 48825283, 60381563, 71360029, 82627402, 97650566, 120763126, 142720058, 537078113, 784960319, 927680377, 1074156226, 1569920638, 1855360754, 10204484147, 20408968294]

約数ペア:

[(1, 20408968294), (2, 10204484147), (11, 1855360754), (13, 1569920638), (19, 1074156226), (22, 927680377), (26, 784960319), (38, 537078113), (143, 142720058), (169, 120763126), (209, 97650566), (247, 82627402), (286, 71360029), (338, 60381563), (418, 48825283), (494, 41313701), (1859, 10978466), (2717, 7511582), (3211, 6355954), (3718, 5489233), (5434, 3755791), (6422, 3177977), (35321, 577814), (70642, 288907)]