128538160

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{23981}}^1$

素因数の和:24061

約数の個数: 40

約数和(自身を含む): 303324336

約数和(自身を除く): 174786176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 23981, 47962, 95924, 119905, 191848, 239810, 383696, 479620, 959240, 1606727, 1918480, 3213454, 6426908, 8033635, 12853816, 16067270, 25707632, 32134540, 64269080, 128538160]

約数ペア:

[(1, 128538160), (2, 64269080), (4, 32134540), (5, 25707632), (8, 16067270), (10, 12853816), (16, 8033635), (20, 6426908), (40, 3213454), (67, 1918480), (80, 1606727), (134, 959240), (268, 479620), (335, 383696), (536, 239810), (670, 191848), (1072, 119905), (1340, 95924), (2680, 47962), (5360, 23981)]