20989950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{3413}}^1$

素因数の和:3469

約数の個数: 48

約数和(自身を含む): 53340336

約数和(自身を除く): 32350386

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 41, 50, 75, 82, 123, 150, 205, 246, 410, 615, 1025, 1230, 2050, 3075, 3413, 6150, 6826, 10239, 17065, 20478, 34130, 51195, 85325, 102390, 139933, 170650, 255975, 279866, 419799, 511950, 699665, 839598, 1399330, 2098995, 3498325, 4197990, 6996650, 10494975, 20989950]

約数ペア:

[(1, 20989950), (2, 10494975), (3, 6996650), (5, 4197990), (6, 3498325), (10, 2098995), (15, 1399330), (25, 839598), (30, 699665), (41, 511950), (50, 419799), (75, 279866), (82, 255975), (123, 170650), (150, 139933), (205, 102390), (246, 85325), (410, 51195), (615, 34130), (1025, 20478), (1230, 17065), (2050, 10239), (3075, 6826), (3413, 6150)]