221566000

素因数分解:

$2^4\times 5^3\times {\mathrm{139}}^1\times {\mathrm{797}}^1$

素因数の和:959

約数の個数: 80

約数和(自身を含む): 540277920

約数和(自身を除く): 318711920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 139, 200, 250, 278, 400, 500, 556, 695, 797, 1000, 1112, 1390, 1594, 2000, 2224, 2780, 3188, 3475, 3985, 5560, 6376, 6950, 7970, 11120, 12752, 13900, 15940, 17375, 19925, 27800, 31880, 34750, 39850, 55600, 63760, 69500, 79700, 99625, 110783, 139000, 159400, 199250, 221566, 278000, 318800, 398500, 443132, 553915, 797000, 886264, 1107830, 1594000, 1772528, 2215660, 2769575, 4431320, 5539150, 8862640, 11078300, 13847875, 22156600, 27695750, 44313200, 55391500, 110783000, 221566000]

約数ペア:

[(1, 221566000), (2, 110783000), (4, 55391500), (5, 44313200), (8, 27695750), (10, 22156600), (16, 13847875), (20, 11078300), (25, 8862640), (40, 5539150), (50, 4431320), (80, 2769575), (100, 2215660), (125, 1772528), (139, 1594000), (200, 1107830), (250, 886264), (278, 797000), (400, 553915), (500, 443132), (556, 398500), (695, 318800), (797, 278000), (1000, 221566), (1112, 199250), (1390, 159400), (1594, 139000), (2000, 110783), (2224, 99625), (2780, 79700), (3188, 69500), (3475, 63760), (3985, 55600), (5560, 39850), (6376, 34750), (6950, 31880), (7970, 27800), (11120, 19925), (12752, 17375), (13900, 15940)]