720046820

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{1439}}^1$

素因数の和:1772

約数の個数: 48

約数和(自身を含む): 1532805120

約数和(自身を除く): 812758300

約数列:

[1, 2, 4, 5, 10, 20, 127, 197, 254, 394, 508, 635, 788, 985, 1270, 1439, 1970, 2540, 2878, 3940, 5756, 7195, 14390, 25019, 28780, 50038, 100076, 125095, 182753, 250190, 283483, 365506, 500380, 566966, 731012, 913765, 1133932, 1417415, 1827530, 2834830, 3655060, 5669660, 36002341, 72004682, 144009364, 180011705, 360023410, 720046820]

約数ペア:

[(1, 720046820), (2, 360023410), (4, 180011705), (5, 144009364), (10, 72004682), (20, 36002341), (127, 5669660), (197, 3655060), (254, 2834830), (394, 1827530), (508, 1417415), (635, 1133932), (788, 913765), (985, 731012), (1270, 566966), (1439, 500380), (1970, 365506), (2540, 283483), (2878, 250190), (3940, 182753), (5756, 125095), (7195, 100076), (14390, 50038), (25019, 28780)]