8649970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 18385920

約数和(自身を除く): 9735950

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 127, 139, 245, 254, 278, 490, 635, 695, 889, 973, 1270, 1390, 1778, 1946, 4445, 4865, 6223, 6811, 8890, 9730, 12446, 13622, 17653, 31115, 34055, 35306, 62230, 68110, 88265, 123571, 176530, 247142, 617855, 864997, 1235710, 1729994, 4324985, 8649970]

約数ペア:

[(1, 8649970), (2, 4324985), (5, 1729994), (7, 1235710), (10, 864997), (14, 617855), (35, 247142), (49, 176530), (70, 123571), (98, 88265), (127, 68110), (139, 62230), (245, 35306), (254, 34055), (278, 31115), (490, 17653), (635, 13622), (695, 12446), (889, 9730), (973, 8890), (1270, 6811), (1390, 6223), (1778, 4865), (1946, 4445)]