640964886

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1\times {\mathrm{1327}}^1$

素因数の和:1593

約数の個数: 48

約数和(自身を含む): 1360041984

約数和(自身を除く): 719077098

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 223, 361, 446, 669, 722, 1083, 1327, 1338, 2166, 2654, 3981, 4237, 7962, 8474, 12711, 25213, 25422, 50426, 75639, 80503, 151278, 161006, 241509, 295921, 479047, 483018, 591842, 887763, 958094, 1437141, 1775526, 2874282, 5622499, 11244998, 16867497, 33734994, 106827481, 213654962, 320482443, 640964886]

約数ペア:

[(1, 640964886), (2, 320482443), (3, 213654962), (6, 106827481), (19, 33734994), (38, 16867497), (57, 11244998), (114, 5622499), (223, 2874282), (361, 1775526), (446, 1437141), (669, 958094), (722, 887763), (1083, 591842), (1327, 483018), (1338, 479047), (2166, 295921), (2654, 241509), (3981, 161006), (4237, 151278), (7962, 80503), (8474, 75639), (12711, 50426), (25213, 25422)]