100775980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{70969}}^1$

素因数の和:71049

約数の個数: 24

約数和(自身を含む): 214613280

約数和(自身を除く): 113837300

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 70969, 141938, 283876, 354845, 709690, 1419380, 5038799, 10077598, 20155196, 25193995, 50387990, 100775980]

約数ペア:

[(1, 100775980), (2, 50387990), (4, 25193995), (5, 20155196), (10, 10077598), (20, 5038799), (71, 1419380), (142, 709690), (284, 354845), (355, 283876), (710, 141938), (1420, 70969)]