20173856890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{406649}}^1$

素因数の和:406719

約数の個数: 48

約数和(自身を含む): 40887844200

約数和(自身を除く): 20713987310

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 121, 205, 242, 410, 451, 605, 902, 1210, 2255, 4510, 4961, 9922, 24805, 49610, 406649, 813298, 2033245, 4066490, 4473139, 8946278, 16672609, 22365695, 33345218, 44731390, 49204529, 83363045, 98409058, 166726090, 183398699, 246022645, 366797398, 492045290, 916993495, 1833986990, 2017385689, 4034771378, 10086928445, 20173856890]

約数ペア:

[(1, 20173856890), (2, 10086928445), (5, 4034771378), (10, 2017385689), (11, 1833986990), (22, 916993495), (41, 492045290), (55, 366797398), (82, 246022645), (110, 183398699), (121, 166726090), (205, 98409058), (242, 83363045), (410, 49204529), (451, 44731390), (605, 33345218), (902, 22365695), (1210, 16672609), (2255, 8946278), (4510, 4473139), (4961, 4066490), (9922, 2033245), (24805, 813298), (49610, 406649)]