149786980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{5431}}^1$

素因数の和:5644

約数の個数: 48

約数和(自身を含む): 361380096

約数和(自身を除く): 211593116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5431, 5516, 6895, 10862, 13790, 21724, 27155, 27580, 38017, 54310, 76034, 108620, 152068, 190085, 380170, 760340, 1069907, 2139814, 4279628, 5349535, 7489349, 10699070, 14978698, 21398140, 29957396, 37446745, 74893490, 149786980]

約数ペア:

[(1, 149786980), (2, 74893490), (4, 37446745), (5, 29957396), (7, 21398140), (10, 14978698), (14, 10699070), (20, 7489349), (28, 5349535), (35, 4279628), (70, 2139814), (140, 1069907), (197, 760340), (394, 380170), (788, 190085), (985, 152068), (1379, 108620), (1970, 76034), (2758, 54310), (3940, 38017), (5431, 27580), (5516, 27155), (6895, 21724), (10862, 13790)]