20204280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56123}}^1$

素因数の和:56140

約数の個数: 48

約数和(自身を含む): 65665080

約数和(自身を除く): 45460800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56123, 112246, 168369, 224492, 280615, 336738, 448984, 505107, 561230, 673476, 841845, 1010214, 1122460, 1346952, 1683690, 2020428, 2244920, 2525535, 3367380, 4040856, 5051070, 6734760, 10102140, 20204280]

約数ペア:

[(1, 20204280), (2, 10102140), (3, 6734760), (4, 5051070), (5, 4040856), (6, 3367380), (8, 2525535), (9, 2244920), (10, 2020428), (12, 1683690), (15, 1346952), (18, 1122460), (20, 1010214), (24, 841845), (30, 673476), (36, 561230), (40, 505107), (45, 448984), (60, 336738), (72, 280615), (90, 224492), (120, 168369), (180, 112246), (360, 56123)]