20511680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9157}}^1$

素因数の和:9181

約数の個数: 56

約数和(自身を含む): 55827168

約数和(自身を除く): 35315488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9157, 18314, 36628, 45785, 64099, 73256, 91570, 128198, 146512, 183140, 256396, 293024, 320495, 366280, 512792, 586048, 640990, 732560, 1025584, 1281980, 1465120, 2051168, 2563960, 2930240, 4102336, 5127920, 10255840, 20511680]

約数ペア:

[(1, 20511680), (2, 10255840), (4, 5127920), (5, 4102336), (7, 2930240), (8, 2563960), (10, 2051168), (14, 1465120), (16, 1281980), (20, 1025584), (28, 732560), (32, 640990), (35, 586048), (40, 512792), (56, 366280), (64, 320495), (70, 293024), (80, 256396), (112, 183140), (140, 146512), (160, 128198), (224, 91570), (280, 73256), (320, 64099), (448, 45785), (560, 36628), (1120, 18314), (2240, 9157)]