20570935

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 33242400

約数和(自身を除く): 12671465

約数列:

[1, 5, 7, 11, 17, 35, 49, 55, 77, 85, 119, 187, 245, 385, 449, 539, 595, 833, 935, 1309, 2245, 2695, 3143, 4165, 4939, 6545, 7633, 9163, 15715, 22001, 24695, 34573, 38165, 45815, 53431, 83963, 110005, 172865, 242011, 267155, 374017, 419815, 587741, 1210055, 1870085, 2938705, 4114187, 20570935]

約数ペア:

[(1, 20570935), (5, 4114187), (7, 2938705), (11, 1870085), (17, 1210055), (35, 587741), (49, 419815), (55, 374017), (77, 267155), (85, 242011), (119, 172865), (187, 110005), (245, 83963), (385, 53431), (449, 45815), (539, 38165), (595, 34573), (833, 24695), (935, 22001), (1309, 15715), (2245, 9163), (2695, 7633), (3143, 6545), (4165, 4939)]