20759490

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8543}}^1$

素因数の和:8565

約数の個数: 48

約数和(自身を含む): 55980288

約数和(自身を除く): 35220798

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8543, 17086, 25629, 42715, 51258, 76887, 85430, 128145, 153774, 230661, 256290, 384435, 461322, 691983, 768870, 1153305, 1383966, 2075949, 2306610, 3459915, 4151898, 6919830, 10379745, 20759490]

約数ペア:

[(1, 20759490), (2, 10379745), (3, 6919830), (5, 4151898), (6, 3459915), (9, 2306610), (10, 2075949), (15, 1383966), (18, 1153305), (27, 768870), (30, 691983), (45, 461322), (54, 384435), (81, 256290), (90, 230661), (135, 153774), (162, 128145), (243, 85430), (270, 76887), (405, 51258), (486, 42715), (810, 25629), (1215, 17086), (2430, 8543)]