87565220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{15581}}^1$

素因数の和:15871

約数の個数: 24

約数和(自身を含む): 184553208

約数和(自身を除く): 96987988

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 15581, 31162, 62324, 77905, 155810, 311620, 4378261, 8756522, 17513044, 21891305, 43782610, 87565220]

約数ペア:

[(1, 87565220), (2, 43782610), (4, 21891305), (5, 17513044), (10, 8756522), (20, 4378261), (281, 311620), (562, 155810), (1124, 77905), (1405, 62324), (2810, 31162), (5620, 15581)]