12742685680

素因数分解:

$2^4\times 5^1\times {\mathrm{16189}}^1\times {\mathrm{9839}}^1$

素因数の和:26041

約数の個数: 40

約数和(自身を含む): 29631585600

約数和(自身を除く): 16888899920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9839, 16189, 19678, 32378, 39356, 49195, 64756, 78712, 80945, 98390, 129512, 157424, 161890, 196780, 259024, 323780, 393560, 647560, 787120, 1295120, 159283571, 318567142, 637134284, 796417855, 1274268568, 1592835710, 2548537136, 3185671420, 6371342840, 12742685680]

約数ペア:

[(1, 12742685680), (2, 6371342840), (4, 3185671420), (5, 2548537136), (8, 1592835710), (10, 1274268568), (16, 796417855), (20, 637134284), (40, 318567142), (80, 159283571), (9839, 1295120), (16189, 787120), (19678, 647560), (32378, 393560), (39356, 323780), (49195, 259024), (64756, 196780), (78712, 161890), (80945, 157424), (98390, 129512)]