21500080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38393}}^1$

素因数の和:38413

約数の個数: 40

約数和(自身を含む): 57130272

約数和(自身を除く): 35630192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38393, 76786, 153572, 191965, 268751, 307144, 383930, 537502, 614288, 767860, 1075004, 1343755, 1535720, 2150008, 2687510, 3071440, 4300016, 5375020, 10750040, 21500080]

約数ペア:

[(1, 21500080), (2, 10750040), (4, 5375020), (5, 4300016), (7, 3071440), (8, 2687510), (10, 2150008), (14, 1535720), (16, 1343755), (20, 1075004), (28, 767860), (35, 614288), (40, 537502), (56, 383930), (70, 307144), (80, 268751), (112, 191965), (140, 153572), (280, 76786), (560, 38393)]