20424900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{661}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 59760064

約数和(自身を除く): 39335164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 103, 150, 206, 300, 309, 412, 515, 618, 661, 1030, 1236, 1322, 1545, 1983, 2060, 2575, 2644, 3090, 3305, 3966, 5150, 6180, 6610, 7725, 7932, 9915, 10300, 13220, 15450, 16525, 19830, 30900, 33050, 39660, 49575, 66100, 68083, 99150, 136166, 198300, 204249, 272332, 340415, 408498, 680830, 816996, 1021245, 1361660, 1702075, 2042490, 3404150, 4084980, 5106225, 6808300, 10212450, 20424900]

約数ペア:

[(1, 20424900), (2, 10212450), (3, 6808300), (4, 5106225), (5, 4084980), (6, 3404150), (10, 2042490), (12, 1702075), (15, 1361660), (20, 1021245), (25, 816996), (30, 680830), (50, 408498), (60, 340415), (75, 272332), (100, 204249), (103, 198300), (150, 136166), (206, 99150), (300, 68083), (309, 66100), (412, 49575), (515, 39660), (618, 33050), (661, 30900), (1030, 19830), (1236, 16525), (1322, 15450), (1545, 13220), (1983, 10300), (2060, 9915), (2575, 7932), (2644, 7725), (3090, 6610), (3305, 6180), (3966, 5150)]