128864240

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9311}}^1$

素因数の和:9497

約数の個数: 40

約数和(自身を含む): 301373568

約数和(自身を除く): 172509328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 9311, 13840, 18622, 37244, 46555, 74488, 93110, 148976, 186220, 372440, 744880, 1610803, 3221606, 6443212, 8054015, 12886424, 16108030, 25772848, 32216060, 64432120, 128864240]

約数ペア:

[(1, 128864240), (2, 64432120), (4, 32216060), (5, 25772848), (8, 16108030), (10, 12886424), (16, 8054015), (20, 6443212), (40, 3221606), (80, 1610803), (173, 744880), (346, 372440), (692, 186220), (865, 148976), (1384, 93110), (1730, 74488), (2768, 46555), (3460, 37244), (6920, 18622), (9311, 13840)]