15663520

素因数分解:

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

素因数の和:677

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 21592160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 439, 446, 878, 892, 1115, 1756, 1784, 2195, 2230, 3512, 3568, 4390, 4460, 7024, 7136, 8780, 8920, 14048, 17560, 17840, 35120, 35680, 70240, 97897, 195794, 391588, 489485, 783176, 978970, 1566352, 1957940, 3132704, 3915880, 7831760, 15663520]

約数ペア:

[(1, 15663520), (2, 7831760), (4, 3915880), (5, 3132704), (8, 1957940), (10, 1566352), (16, 978970), (20, 783176), (32, 489485), (40, 391588), (80, 195794), (160, 97897), (223, 70240), (439, 35680), (446, 35120), (878, 17840), (892, 17560), (1115, 14048), (1756, 8920), (1784, 8780), (2195, 7136), (2230, 7024), (3512, 4460), (3568, 4390)]