5117980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 12418560

約数和(自身を除く): 7300580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 263, 278, 526, 556, 695, 973, 1052, 1315, 1390, 1841, 1946, 2630, 2780, 3682, 3892, 4865, 5260, 7364, 9205, 9730, 18410, 19460, 36557, 36820, 73114, 146228, 182785, 255899, 365570, 511798, 731140, 1023596, 1279495, 2558990, 5117980]

約数ペア:

[(1, 5117980), (2, 2558990), (4, 1279495), (5, 1023596), (7, 731140), (10, 511798), (14, 365570), (20, 255899), (28, 182785), (35, 146228), (70, 73114), (139, 36820), (140, 36557), (263, 19460), (278, 18410), (526, 9730), (556, 9205), (695, 7364), (973, 5260), (1052, 4865), (1315, 3892), (1390, 3682), (1841, 2780), (1946, 2630)]