20488448

素因数分解:

$2^8\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:670

約数の個数: 36

約数和(自身を含む): 41231568

約数和(自身を除く): 20743120

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 163, 256, 326, 491, 652, 982, 1304, 1964, 2608, 3928, 5216, 7856, 10432, 15712, 20864, 31424, 41728, 62848, 80033, 125696, 160066, 320132, 640264, 1280528, 2561056, 5122112, 10244224, 20488448]

約数ペア:

[(1, 20488448), (2, 10244224), (4, 5122112), (8, 2561056), (16, 1280528), (32, 640264), (64, 320132), (128, 160066), (163, 125696), (256, 80033), (326, 62848), (491, 41728), (652, 31424), (982, 20864), (1304, 15712), (1964, 10432), (2608, 7856), (3928, 5216)]