2028721000

素因数分解:

$2^3\times 5^3\times {\mathrm{41}}^1\times {\mathrm{49481}}^1$

素因数の和:49543

約数の個数: 64

約数和(自身を含む): 4863090960

約数和(自身を除く): 2834369960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 820, 1000, 1025, 1640, 2050, 4100, 5125, 8200, 10250, 20500, 41000, 49481, 98962, 197924, 247405, 395848, 494810, 989620, 1237025, 1979240, 2028721, 2474050, 4057442, 4948100, 6185125, 8114884, 9896200, 10143605, 12370250, 16229768, 20287210, 24740500, 40574420, 49481000, 50718025, 81148840, 101436050, 202872100, 253590125, 405744200, 507180250, 1014360500, 2028721000]

約数ペア:

[(1, 2028721000), (2, 1014360500), (4, 507180250), (5, 405744200), (8, 253590125), (10, 202872100), (20, 101436050), (25, 81148840), (40, 50718025), (41, 49481000), (50, 40574420), (82, 24740500), (100, 20287210), (125, 16229768), (164, 12370250), (200, 10143605), (205, 9896200), (250, 8114884), (328, 6185125), (410, 4948100), (500, 4057442), (820, 2474050), (1000, 2028721), (1025, 1979240), (1640, 1237025), (2050, 989620), (4100, 494810), (5125, 395848), (8200, 247405), (10250, 197924), (20500, 98962), (41000, 49481)]