20522045740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{195709}}^1$

素因数の和:195839

約数の個数: 72

約数和(自身を含む): 50601211920

約数和(自身を除く): 30079166180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 107, 140, 196, 214, 245, 428, 490, 535, 749, 980, 1070, 1498, 2140, 2996, 3745, 5243, 7490, 10486, 14980, 20972, 26215, 52430, 104860, 195709, 391418, 782836, 978545, 1369963, 1957090, 2739926, 3914180, 5479852, 6849815, 9589741, 13699630, 19179482, 20940863, 27399260, 38358964, 41881726, 47948705, 83763452, 95897410, 104704315, 146586041, 191794820, 209408630, 293172082, 418817260, 586344164, 732930205, 1026102287, 1465860410, 2052204574, 2931720820, 4104409148, 5130511435, 10261022870, 20522045740]

約数ペア:

[(1, 20522045740), (2, 10261022870), (4, 5130511435), (5, 4104409148), (7, 2931720820), (10, 2052204574), (14, 1465860410), (20, 1026102287), (28, 732930205), (35, 586344164), (49, 418817260), (70, 293172082), (98, 209408630), (107, 191794820), (140, 146586041), (196, 104704315), (214, 95897410), (245, 83763452), (428, 47948705), (490, 41881726), (535, 38358964), (749, 27399260), (980, 20940863), (1070, 19179482), (1498, 13699630), (2140, 9589741), (2996, 6849815), (3745, 5479852), (5243, 3914180), (7490, 2739926), (10486, 1957090), (14980, 1369963), (20972, 978545), (26215, 782836), (52430, 391418), (104860, 195709)]