20804948408

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1375261}}^1$

素因数の和:1375359

約数の個数: 32

約数和(自身を含む): 40927797120

約数和(自身を除く): 20122848712

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1891, 3782, 7564, 15128, 1375261, 2750522, 5501044, 11002088, 42633091, 83890921, 85266182, 167781842, 170532364, 335563684, 341064728, 671127368, 2600618551, 5201237102, 10402474204, 20804948408]

約数ペア:

[(1, 20804948408), (2, 10402474204), (4, 5201237102), (8, 2600618551), (31, 671127368), (61, 341064728), (62, 335563684), (122, 170532364), (124, 167781842), (244, 85266182), (248, 83890921), (488, 42633091), (1891, 11002088), (3782, 5501044), (7564, 2750522), (15128, 1375261)]