20171291728

素因数分解:

$2^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1104913}}^1$

素因数の和:1105091

約数の個数: 40

約数和(自身を含む): 44939062208

約数和(自身を除く): 24767770480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 163, 326, 652, 1141, 1304, 2282, 2608, 4564, 9128, 18256, 1104913, 2209826, 4419652, 7734391, 8839304, 15468782, 17678608, 30937564, 61875128, 123750256, 180100819, 360201638, 720403276, 1260705733, 1440806552, 2521411466, 2881613104, 5042822932, 10085645864, 20171291728]

約数ペア:

[(1, 20171291728), (2, 10085645864), (4, 5042822932), (7, 2881613104), (8, 2521411466), (14, 1440806552), (16, 1260705733), (28, 720403276), (56, 360201638), (112, 180100819), (163, 123750256), (326, 61875128), (652, 30937564), (1141, 17678608), (1304, 15468782), (2282, 8839304), (2608, 7734391), (4564, 4419652), (9128, 2209826), (18256, 1104913)]