18764512

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1049}}^1$

素因数の和:1115

約数の個数: 48

約数和(自身を含む): 40748400

約数和(自身を除く): 21983888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1049, 1118, 1376, 2098, 2236, 4196, 4472, 8392, 8944, 13637, 16784, 17888, 27274, 33568, 45107, 54548, 90214, 109096, 180428, 218192, 360856, 436384, 586391, 721712, 1172782, 1443424, 2345564, 4691128, 9382256, 18764512]

約数ペア:

[(1, 18764512), (2, 9382256), (4, 4691128), (8, 2345564), (13, 1443424), (16, 1172782), (26, 721712), (32, 586391), (43, 436384), (52, 360856), (86, 218192), (104, 180428), (172, 109096), (208, 90214), (344, 54548), (416, 45107), (559, 33568), (688, 27274), (1049, 17888), (1118, 16784), (1376, 13637), (2098, 8944), (2236, 8392), (4196, 4472)]