216702920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{773939}}^1$

素因数の和:773957

約数の個数: 32

約数和(自身を含む): 557236800

約数和(自身を除く): 340533880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 773939, 1547878, 3095756, 3869695, 5417573, 6191512, 7739390, 10835146, 15478780, 21670292, 27087865, 30957560, 43340584, 54175730, 108351460, 216702920]

約数ペア:

[(1, 216702920), (2, 108351460), (4, 54175730), (5, 43340584), (7, 30957560), (8, 27087865), (10, 21670292), (14, 15478780), (20, 10835146), (28, 7739390), (35, 6191512), (40, 5417573), (56, 3869695), (70, 3095756), (140, 1547878), (280, 773939)]