221180453860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{155760883}}^1$

素因数の和:155760963

約数の個数: 24

約数和(自身を含む): 471020913216

約数和(自身を除く): 249840459356

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 155760883, 311521766, 623043532, 778804415, 1557608830, 3115217660, 11059022693, 22118045386, 44236090772, 55295113465, 110590226930, 221180453860]

約数ペア:

[(1, 221180453860), (2, 110590226930), (4, 55295113465), (5, 44236090772), (10, 22118045386), (20, 11059022693), (71, 3115217660), (142, 1557608830), (284, 778804415), (355, 623043532), (710, 311521766), (1420, 155760883)]