277061960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{989507}}^1$

素因数の和:989525

約数の個数: 32

約数和(自身を含む): 712445760

約数和(自身を除く): 435383800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 989507, 1979014, 3958028, 4947535, 6926549, 7916056, 9895070, 13853098, 19790140, 27706196, 34632745, 39580280, 55412392, 69265490, 138530980, 277061960]

約数ペア:

[(1, 277061960), (2, 138530980), (4, 69265490), (5, 55412392), (7, 39580280), (8, 34632745), (10, 27706196), (14, 19790140), (20, 13853098), (28, 9895070), (35, 7916056), (40, 6926549), (56, 4947535), (70, 3958028), (140, 1979014), (280, 989507)]