12881420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{9613}}^1$

素因数の和:9689

約数の個数: 24

約数和(自身を含む): 27457584

約数和(自身を除く): 14576164

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 9613, 19226, 38452, 48065, 96130, 192260, 644071, 1288142, 2576284, 3220355, 6440710, 12881420]

約数ペア:

[(1, 12881420), (2, 6440710), (4, 3220355), (5, 2576284), (10, 1288142), (20, 644071), (67, 192260), (134, 96130), (268, 48065), (335, 38452), (670, 19226), (1340, 9613)]