217490640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{906211}}^1$

素因数の和:906227

約数の個数: 40

約数和(自身を含む): 674221728

約数和(自身を除く): 456731088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 906211, 1812422, 2718633, 3624844, 4531055, 5437266, 7249688, 9062110, 10874532, 13593165, 14499376, 18124220, 21749064, 27186330, 36248440, 43498128, 54372660, 72496880, 108745320, 217490640]

約数ペア:

[(1, 217490640), (2, 108745320), (3, 72496880), (4, 54372660), (5, 43498128), (6, 36248440), (8, 27186330), (10, 21749064), (12, 18124220), (15, 14499376), (16, 13593165), (20, 10874532), (24, 9062110), (30, 7249688), (40, 5437266), (48, 4531055), (60, 3624844), (80, 2718633), (120, 1812422), (240, 906211)]