81122305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 112752000

約数和(自身を除く): 31629695

約数列:

[1, 5, 11, 19, 55, 95, 149, 209, 521, 745, 1045, 1639, 2605, 2831, 5731, 8195, 9899, 14155, 28655, 31141, 49495, 77629, 108889, 155705, 388145, 544445, 853919, 1474951, 4269595, 7374755, 16224461, 81122305]

約数ペア:

[(1, 81122305), (5, 16224461), (11, 7374755), (19, 4269595), (55, 1474951), (95, 853919), (149, 544445), (209, 388145), (521, 155705), (745, 108889), (1045, 77629), (1639, 49495), (2605, 31141), (2831, 28655), (5731, 14155), (8195, 9899)]