20753440

素因数分解:

$2^5\times 5^1\times {\mathrm{151}}^1\times {\mathrm{859}}^1$

素因数の和:1025

約数の個数: 48

約数和(自身を含む): 49412160

約数和(自身を除く): 28658720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 151, 160, 302, 604, 755, 859, 1208, 1510, 1718, 2416, 3020, 3436, 4295, 4832, 6040, 6872, 8590, 12080, 13744, 17180, 24160, 27488, 34360, 68720, 129709, 137440, 259418, 518836, 648545, 1037672, 1297090, 2075344, 2594180, 4150688, 5188360, 10376720, 20753440]

約数ペア:

[(1, 20753440), (2, 10376720), (4, 5188360), (5, 4150688), (8, 2594180), (10, 2075344), (16, 1297090), (20, 1037672), (32, 648545), (40, 518836), (80, 259418), (151, 137440), (160, 129709), (302, 68720), (604, 34360), (755, 27488), (859, 24160), (1208, 17180), (1510, 13744), (1718, 12080), (2416, 8590), (3020, 6872), (3436, 6040), (4295, 4832)]