639341738

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{9337}}^1$

素因数の和:9486

約数の個数: 32

約数和(自身を含む): 1127731584

約数和(自身を除く): 488389846

約数列:

[1, 2, 7, 14, 67, 73, 134, 146, 469, 511, 938, 1022, 4891, 9337, 9782, 18674, 34237, 65359, 68474, 130718, 625579, 681601, 1251158, 1363202, 4379053, 4771207, 8758106, 9542414, 45667267, 91334534, 319670869, 639341738]

約数ペア:

[(1, 639341738), (2, 319670869), (7, 91334534), (14, 45667267), (67, 9542414), (73, 8758106), (134, 4771207), (146, 4379053), (469, 1363202), (511, 1251158), (938, 681601), (1022, 625579), (4891, 130718), (9337, 68474), (9782, 65359), (18674, 34237)]