2981320

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 6806520

約数和(自身を除く): 3825200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1021, 1460, 2042, 2920, 4084, 5105, 8168, 10210, 20420, 40840, 74533, 149066, 298132, 372665, 596264, 745330, 1490660, 2981320]

約数ペア:

[(1, 2981320), (2, 1490660), (4, 745330), (5, 596264), (8, 372665), (10, 298132), (20, 149066), (40, 74533), (73, 40840), (146, 20420), (292, 10210), (365, 8168), (584, 5105), (730, 4084), (1021, 2920), (1460, 2042)]