68513840

素因数分解:

$2^4\times 5^1\times {\mathrm{859}}^1\times {\mathrm{997}}^1$

素因数の和:1869

約数の個数: 40

約数和(自身を含む): 159640080

約数和(自身を除く): 91126240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 859, 997, 1718, 1994, 3436, 3988, 4295, 4985, 6872, 7976, 8590, 9970, 13744, 15952, 17180, 19940, 34360, 39880, 68720, 79760, 856423, 1712846, 3425692, 4282115, 6851384, 8564230, 13702768, 17128460, 34256920, 68513840]

約数ペア:

[(1, 68513840), (2, 34256920), (4, 17128460), (5, 13702768), (8, 8564230), (10, 6851384), (16, 4282115), (20, 3425692), (40, 1712846), (80, 856423), (859, 79760), (997, 68720), (1718, 39880), (1994, 34360), (3436, 19940), (3988, 17180), (4295, 15952), (4985, 13744), (6872, 9970), (7976, 8590)]