20172328180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{123863}}^1$

素因数の和:124368

約数の個数: 48

約数和(自身を含む): 44947768320

約数和(自身を除く): 24775440140

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 479, 958, 1916, 2395, 4790, 8143, 9580, 16286, 32572, 40715, 81430, 123863, 162860, 247726, 495452, 619315, 1238630, 2105671, 2477260, 4211342, 8422684, 10528355, 21056710, 42113420, 59330377, 118660754, 237321508, 296651885, 593303770, 1008616409, 1186607540, 2017232818, 4034465636, 5043082045, 10086164090, 20172328180]

約数ペア:

[(1, 20172328180), (2, 10086164090), (4, 5043082045), (5, 4034465636), (10, 2017232818), (17, 1186607540), (20, 1008616409), (34, 593303770), (68, 296651885), (85, 237321508), (170, 118660754), (340, 59330377), (479, 42113420), (958, 21056710), (1916, 10528355), (2395, 8422684), (4790, 4211342), (8143, 2477260), (9580, 2105671), (16286, 1238630), (32572, 619315), (40715, 495452), (81430, 247726), (123863, 162860)]