81211568

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163733}}^1$

素因数の和:163772

約数の個数: 20

約数和(自身を含む): 162424128

約数和(自身を除く): 81212560

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 163733, 327466, 654932, 1309864, 2619728, 5075723, 10151446, 20302892, 40605784, 81211568]

約数ペア:

[(1, 81211568), (2, 40605784), (4, 20302892), (8, 10151446), (16, 5075723), (31, 2619728), (62, 1309864), (124, 654932), (248, 327466), (496, 163733)]