20501880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24407}}^1$

素因数の和:24428

約数の個数: 64

約数和(自身を含む): 70295040

約数和(自身を除く): 49793160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24407, 48814, 73221, 97628, 122035, 146442, 170849, 195256, 244070, 292884, 341698, 366105, 488140, 512547, 585768, 683396, 732210, 854245, 976280, 1025094, 1366792, 1464420, 1708490, 2050188, 2562735, 2928840, 3416980, 4100376, 5125470, 6833960, 10250940, 20501880]

約数ペア:

[(1, 20501880), (2, 10250940), (3, 6833960), (4, 5125470), (5, 4100376), (6, 3416980), (7, 2928840), (8, 2562735), (10, 2050188), (12, 1708490), (14, 1464420), (15, 1366792), (20, 1025094), (21, 976280), (24, 854245), (28, 732210), (30, 683396), (35, 585768), (40, 512547), (42, 488140), (56, 366105), (60, 341698), (70, 292884), (84, 244070), (105, 195256), (120, 170849), (140, 146442), (168, 122035), (210, 97628), (280, 73221), (420, 48814), (840, 24407)]