18812768

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1103}}^1$

素因数の和:1167

約数の個数: 48

約数和(自身を含む): 40896576

約数和(自身を除く): 22083808

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 208, 328, 416, 533, 656, 1066, 1103, 1312, 2132, 2206, 4264, 4412, 8528, 8824, 14339, 17056, 17648, 28678, 35296, 45223, 57356, 90446, 114712, 180892, 229424, 361784, 458848, 587899, 723568, 1175798, 1447136, 2351596, 4703192, 9406384, 18812768]

約数ペア:

[(1, 18812768), (2, 9406384), (4, 4703192), (8, 2351596), (13, 1447136), (16, 1175798), (26, 723568), (32, 587899), (41, 458848), (52, 361784), (82, 229424), (104, 180892), (164, 114712), (208, 90446), (328, 57356), (416, 45223), (533, 35296), (656, 28678), (1066, 17648), (1103, 17056), (1312, 14339), (2132, 8824), (2206, 8528), (4264, 4412)]