290435180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{5333}}^1$

素因数の和:5738

約数の個数: 48

約数和(自身を含む): 698967360

約数和(自身を除く): 408532180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1556, 1945, 2723, 3890, 5333, 5446, 7780, 10666, 10892, 13615, 21332, 26665, 27230, 37331, 53330, 54460, 74662, 106660, 149324, 186655, 373310, 746620, 2074537, 4149074, 8298148, 10372685, 14521759, 20745370, 29043518, 41490740, 58087036, 72608795, 145217590, 290435180]

約数ペア:

[(1, 290435180), (2, 145217590), (4, 72608795), (5, 58087036), (7, 41490740), (10, 29043518), (14, 20745370), (20, 14521759), (28, 10372685), (35, 8298148), (70, 4149074), (140, 2074537), (389, 746620), (778, 373310), (1556, 186655), (1945, 149324), (2723, 106660), (3890, 74662), (5333, 54460), (5446, 53330), (7780, 37331), (10666, 27230), (10892, 26665), (13615, 21332)]