148398520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{52253}}^1$

素因数の和:52335

約数の個数: 32

約数和(自身を含む): 338605920

約数和(自身を除く): 190207400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 52253, 104506, 209012, 261265, 418024, 522530, 1045060, 2090120, 3709963, 7419926, 14839852, 18549815, 29679704, 37099630, 74199260, 148398520]

約数ペア:

[(1, 148398520), (2, 74199260), (4, 37099630), (5, 29679704), (8, 18549815), (10, 14839852), (20, 7419926), (40, 3709963), (71, 2090120), (142, 1045060), (284, 522530), (355, 418024), (568, 261265), (710, 209012), (1420, 104506), (2840, 52253)]