29980240

素因数分解:

$2^4\times 5^1\times {\mathrm{374753}}^1$

素因数の和:374766

約数の個数: 20

約数和(自身を含む): 69704244

約数和(自身を除く): 39724004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 374753, 749506, 1499012, 1873765, 2998024, 3747530, 5996048, 7495060, 14990120, 29980240]

約数ペア:

[(1, 29980240), (2, 14990120), (4, 7495060), (5, 5996048), (8, 3747530), (10, 2998024), (16, 1873765), (20, 1499012), (40, 749506), (80, 374753)]