21472500

素因数分解:

$2^2\times 3^1\times 5^4\times 7^1\times {\mathrm{409}}^1$

素因数の和:443

約数の個数: 120

約数和(自身を含む): 71727040

約数和(自身を除く): 50254540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 125, 140, 150, 175, 210, 250, 300, 350, 375, 409, 420, 500, 525, 625, 700, 750, 818, 875, 1050, 1227, 1250, 1500, 1636, 1750, 1875, 2045, 2100, 2454, 2500, 2625, 2863, 3500, 3750, 4090, 4375, 4908, 5250, 5726, 6135, 7500, 8180, 8589, 8750, 10225, 10500, 11452, 12270, 13125, 14315, 17178, 17500, 20450, 24540, 26250, 28630, 30675, 34356, 40900, 42945, 51125, 52500, 57260, 61350, 71575, 85890, 102250, 122700, 143150, 153375, 171780, 204500, 214725, 255625, 286300, 306750, 357875, 429450, 511250, 613500, 715750, 766875, 858900, 1022500, 1073625, 1431500, 1533750, 1789375, 2147250, 3067500, 3578750, 4294500, 5368125, 7157500, 10736250, 21472500]

約数ペア:

[(1, 21472500), (2, 10736250), (3, 7157500), (4, 5368125), (5, 4294500), (6, 3578750), (7, 3067500), (10, 2147250), (12, 1789375), (14, 1533750), (15, 1431500), (20, 1073625), (21, 1022500), (25, 858900), (28, 766875), (30, 715750), (35, 613500), (42, 511250), (50, 429450), (60, 357875), (70, 306750), (75, 286300), (84, 255625), (100, 214725), (105, 204500), (125, 171780), (140, 153375), (150, 143150), (175, 122700), (210, 102250), (250, 85890), (300, 71575), (350, 61350), (375, 57260), (409, 52500), (420, 51125), (500, 42945), (525, 40900), (625, 34356), (700, 30675), (750, 28630), (818, 26250), (875, 24540), (1050, 20450), (1227, 17500), (1250, 17178), (1500, 14315), (1636, 13125), (1750, 12270), (1875, 11452), (2045, 10500), (2100, 10225), (2454, 8750), (2500, 8589), (2625, 8180), (2863, 7500), (3500, 6135), (3750, 5726), (4090, 5250), (4375, 4908)]