20972130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8849}}^1$

素因数の和:8938

約数の個数: 32

約数和(自身を含む): 50976000

約数和(自身を除く): 30003870

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8849, 17698, 26547, 44245, 53094, 88490, 132735, 265470, 699071, 1398142, 2097213, 3495355, 4194426, 6990710, 10486065, 20972130]

約数ペア:

[(1, 20972130), (2, 10486065), (3, 6990710), (5, 4194426), (6, 3495355), (10, 2097213), (15, 1398142), (30, 699071), (79, 265470), (158, 132735), (237, 88490), (395, 53094), (474, 44245), (790, 26547), (1185, 17698), (2370, 8849)]