21150080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4721}}^1$

素因数の和:4747

約数の個数: 64

約数和(自身を含む): 57797280

約数和(自身を除く): 36647200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4721, 9442, 18884, 23605, 33047, 37768, 47210, 66094, 75536, 94420, 132188, 151072, 165235, 188840, 264376, 302144, 330470, 377680, 528752, 604288, 660940, 755360, 1057504, 1321880, 1510720, 2115008, 2643760, 3021440, 4230016, 5287520, 10575040, 21150080]

約数ペア:

[(1, 21150080), (2, 10575040), (4, 5287520), (5, 4230016), (7, 3021440), (8, 2643760), (10, 2115008), (14, 1510720), (16, 1321880), (20, 1057504), (28, 755360), (32, 660940), (35, 604288), (40, 528752), (56, 377680), (64, 330470), (70, 302144), (80, 264376), (112, 188840), (128, 165235), (140, 151072), (160, 132188), (224, 94420), (280, 75536), (320, 66094), (448, 47210), (560, 37768), (640, 33047), (896, 23605), (1120, 18884), (2240, 9442), (4480, 4721)]