20807521040

素因数分解:

$2^4\times 5^1\times {\mathrm{1877}}^1\times {\mathrm{138569}}^1$

素因数の和:140459

約数の個数: 40

約数和(自身を含む): 48403609560

約数和(自身を除く): 27596088520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1877, 3754, 7508, 9385, 15016, 18770, 30032, 37540, 75080, 138569, 150160, 277138, 554276, 692845, 1108552, 1385690, 2217104, 2771380, 5542760, 11085520, 260094013, 520188026, 1040376052, 1300470065, 2080752104, 2600940130, 4161504208, 5201880260, 10403760520, 20807521040]

約数ペア:

[(1, 20807521040), (2, 10403760520), (4, 5201880260), (5, 4161504208), (8, 2600940130), (10, 2080752104), (16, 1300470065), (20, 1040376052), (40, 520188026), (80, 260094013), (1877, 11085520), (3754, 5542760), (7508, 2771380), (9385, 2217104), (15016, 1385690), (18770, 1108552), (30032, 692845), (37540, 554276), (75080, 277138), (138569, 150160)]