20481450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{12413}}^1$

素因数の和:12439

約数の個数: 48

約数和(自身を含む): 55416096

約数和(自身を除く): 34934646

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 150, 165, 275, 330, 550, 825, 1650, 12413, 24826, 37239, 62065, 74478, 124130, 136543, 186195, 273086, 310325, 372390, 409629, 620650, 682715, 819258, 930975, 1365430, 1861950, 2048145, 3413575, 4096290, 6827150, 10240725, 20481450]

約数ペア:

[(1, 20481450), (2, 10240725), (3, 6827150), (5, 4096290), (6, 3413575), (10, 2048145), (11, 1861950), (15, 1365430), (22, 930975), (25, 819258), (30, 682715), (33, 620650), (50, 409629), (55, 372390), (66, 310325), (75, 273086), (110, 186195), (150, 136543), (165, 124130), (275, 74478), (330, 62065), (550, 37239), (825, 24826), (1650, 12413)]