20050395

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1375

約数の個数: 32

約数和(自身を含む): 34551360

約数和(自身を除く): 14500965

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 305, 915, 1037, 1289, 3111, 3867, 5185, 6445, 15555, 19335, 21913, 65739, 78629, 109565, 235887, 328695, 393145, 1179435, 1336693, 4010079, 6683465, 20050395]

約数ペア:

[(1, 20050395), (3, 6683465), (5, 4010079), (15, 1336693), (17, 1179435), (51, 393145), (61, 328695), (85, 235887), (183, 109565), (255, 78629), (305, 65739), (915, 21913), (1037, 19335), (1289, 15555), (3111, 6445), (3867, 5185)]