18870332

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 37340352

約数和(自身を除く): 18470020

約数列:

[1, 2, 4, 13, 26, 41, 52, 53, 82, 106, 164, 167, 212, 334, 533, 668, 689, 1066, 1378, 2132, 2171, 2173, 2756, 4342, 4346, 6847, 8684, 8692, 8851, 13694, 17702, 27388, 28249, 35404, 56498, 89011, 112996, 115063, 178022, 230126, 356044, 362891, 460252, 725782, 1451564, 4717583, 9435166, 18870332]

約数ペア:

[(1, 18870332), (2, 9435166), (4, 4717583), (13, 1451564), (26, 725782), (41, 460252), (52, 362891), (53, 356044), (82, 230126), (106, 178022), (164, 115063), (167, 112996), (212, 89011), (334, 56498), (533, 35404), (668, 28249), (689, 27388), (1066, 17702), (1378, 13694), (2132, 8851), (2171, 8692), (2173, 8684), (2756, 6847), (4342, 4346)]