20856690

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{2861}}^1$

素因数の和:2886

約数の個数: 56

約数和(自身を含む): 56306988

約数和(自身を除く): 35450298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 2430, 2861, 3645, 5722, 7290, 8583, 14305, 17166, 25749, 28610, 42915, 51498, 77247, 85830, 128745, 154494, 231741, 257490, 386235, 463482, 695223, 772470, 1158705, 1390446, 2085669, 2317410, 3476115, 4171338, 6952230, 10428345, 20856690]

約数ペア:

[(1, 20856690), (2, 10428345), (3, 6952230), (5, 4171338), (6, 3476115), (9, 2317410), (10, 2085669), (15, 1390446), (18, 1158705), (27, 772470), (30, 695223), (45, 463482), (54, 386235), (81, 257490), (90, 231741), (135, 154494), (162, 128745), (243, 85830), (270, 77247), (405, 51498), (486, 42915), (729, 28610), (810, 25749), (1215, 17166), (1458, 14305), (2430, 8583), (2861, 7290), (3645, 5722)]