31240480

素因数分解:

$2^5\times 5^1\times {\mathrm{195253}}^1$

素因数の和:195268

約数の個数: 24

約数和(自身を含む): 73806012

約数和(自身を除く): 42565532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 195253, 390506, 781012, 976265, 1562024, 1952530, 3124048, 3905060, 6248096, 7810120, 15620240, 31240480]

約数ペア:

[(1, 31240480), (2, 15620240), (4, 7810120), (5, 6248096), (8, 3905060), (10, 3124048), (16, 1952530), (20, 1562024), (32, 976265), (40, 781012), (80, 390506), (160, 195253)]