216782440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{774223}}^1$

素因数の和:774241

約数の個数: 32

約数和(自身を含む): 557441280

約数和(自身を除く): 340658840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 774223, 1548446, 3096892, 3871115, 5419561, 6193784, 7742230, 10839122, 15484460, 21678244, 27097805, 30968920, 43356488, 54195610, 108391220, 216782440]

約数ペア:

[(1, 216782440), (2, 108391220), (4, 54195610), (5, 43356488), (7, 30968920), (8, 27097805), (10, 21678244), (14, 15484460), (20, 10839122), (28, 7742230), (35, 6193784), (40, 5419561), (56, 3871115), (70, 3096892), (140, 1548446), (280, 774223)]