642768

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{1913}}^1$

素因数の和:1931

約数の個数: 40

約数和(自身を含む): 1898688

約数和(自身を除く): 1255920

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 1913, 3826, 5739, 7652, 11478, 13391, 15304, 22956, 26782, 30608, 40173, 45912, 53564, 80346, 91824, 107128, 160692, 214256, 321384, 642768]

約数ペア:

[(1, 642768), (2, 321384), (3, 214256), (4, 160692), (6, 107128), (7, 91824), (8, 80346), (12, 53564), (14, 45912), (16, 40173), (21, 30608), (24, 26782), (28, 22956), (42, 15304), (48, 13391), (56, 11478), (84, 7652), (112, 5739), (168, 3826), (336, 1913)]