74907280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 205721208

約数和(自身を除く): 130813928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 97, 98, 112, 140, 194, 196, 197, 245, 280, 388, 392, 394, 485, 490, 560, 679, 776, 784, 788, 970, 980, 985, 1358, 1379, 1552, 1576, 1940, 1960, 1970, 2716, 2758, 3152, 3395, 3880, 3920, 3940, 4753, 5432, 5516, 6790, 6895, 7760, 7880, 9506, 9653, 10864, 11032, 13580, 13790, 15760, 19012, 19109, 19306, 22064, 23765, 27160, 27580, 38024, 38218, 38612, 47530, 48265, 54320, 55160, 76048, 76436, 77224, 95060, 95545, 96530, 110320, 133763, 152872, 154448, 190120, 191090, 193060, 267526, 305744, 380240, 382180, 386120, 535052, 668815, 764360, 772240, 936341, 1070104, 1337630, 1528720, 1872682, 2140208, 2675260, 3745364, 4681705, 5350520, 7490728, 9363410, 10701040, 14981456, 18726820, 37453640, 74907280]

約数ペア:

[(1, 74907280), (2, 37453640), (4, 18726820), (5, 14981456), (7, 10701040), (8, 9363410), (10, 7490728), (14, 5350520), (16, 4681705), (20, 3745364), (28, 2675260), (35, 2140208), (40, 1872682), (49, 1528720), (56, 1337630), (70, 1070104), (80, 936341), (97, 772240), (98, 764360), (112, 668815), (140, 535052), (194, 386120), (196, 382180), (197, 380240), (245, 305744), (280, 267526), (388, 193060), (392, 191090), (394, 190120), (485, 154448), (490, 152872), (560, 133763), (679, 110320), (776, 96530), (784, 95545), (788, 95060), (970, 77224), (980, 76436), (985, 76048), (1358, 55160), (1379, 54320), (1552, 48265), (1576, 47530), (1940, 38612), (1960, 38218), (1970, 38024), (2716, 27580), (2758, 27160), (3152, 23765), (3395, 22064), (3880, 19306), (3920, 19109), (3940, 19012), (4753, 15760), (5432, 13790), (5516, 13580), (6790, 11032), (6895, 10864), (7760, 9653), (7880, 9506)]