220155728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1009}}^1\times {\mathrm{1049}}^1$

素因数の和:2079

約数の個数: 40

約数和(自身を含む): 460257000

約数和(自身を除く): 240101272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1009, 1049, 2018, 2098, 4036, 4196, 8072, 8392, 13117, 13637, 16144, 16784, 26234, 27274, 52468, 54548, 104936, 109096, 209872, 218192, 1058441, 2116882, 4233764, 8467528, 13759733, 16935056, 27519466, 55038932, 110077864, 220155728]

約数ペア:

[(1, 220155728), (2, 110077864), (4, 55038932), (8, 27519466), (13, 16935056), (16, 13759733), (26, 8467528), (52, 4233764), (104, 2116882), (208, 1058441), (1009, 218192), (1049, 209872), (2018, 109096), (2098, 104936), (4036, 54548), (4196, 52468), (8072, 27274), (8392, 26234), (13117, 16784), (13637, 16144)]