3915880

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 8870400

約数和(自身を除く): 4954520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 439, 446, 878, 892, 1115, 1756, 1784, 2195, 2230, 3512, 4390, 4460, 8780, 8920, 17560, 97897, 195794, 391588, 489485, 783176, 978970, 1957940, 3915880]

約数ペア:

[(1, 3915880), (2, 1957940), (4, 978970), (5, 783176), (8, 489485), (10, 391588), (20, 195794), (40, 97897), (223, 17560), (439, 8920), (446, 8780), (878, 4460), (892, 4390), (1115, 3512), (1756, 2230), (1784, 2195)]