640313366

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{1979}}^1$

素因数の和:2201

約数の個数: 48

約数和(自身を含む): 1213470720

約数和(自身を除く): 573157354

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 191, 242, 382, 847, 1337, 1694, 1979, 2101, 2674, 3958, 4202, 13853, 14707, 21769, 23111, 27706, 29414, 43538, 46222, 152383, 161777, 239459, 304766, 323554, 377989, 478918, 755978, 1676213, 2645923, 3352426, 4157879, 5291846, 8315758, 29105153, 45736669, 58210306, 91473338, 320156683, 640313366]

約数ペア:

[(1, 640313366), (2, 320156683), (7, 91473338), (11, 58210306), (14, 45736669), (22, 29105153), (77, 8315758), (121, 5291846), (154, 4157879), (191, 3352426), (242, 2645923), (382, 1676213), (847, 755978), (1337, 478918), (1694, 377989), (1979, 323554), (2101, 304766), (2674, 239459), (3958, 161777), (4202, 152383), (13853, 46222), (14707, 43538), (21769, 29414), (23111, 27706)]