81651160

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7213}}^1$

素因数の和:7507

約数の個数: 32

約数和(自身を含む): 184389840

約数和(自身を除く): 102738680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 7213, 11320, 14426, 28852, 36065, 57704, 72130, 144260, 288520, 2041279, 4082558, 8165116, 10206395, 16330232, 20412790, 40825580, 81651160]

約数ペア:

[(1, 81651160), (2, 40825580), (4, 20412790), (5, 16330232), (8, 10206395), (10, 8165116), (20, 4082558), (40, 2041279), (283, 288520), (566, 144260), (1132, 72130), (1415, 57704), (2264, 36065), (2830, 28852), (5660, 14426), (7213, 11320)]