19382380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 43575840

約数和(自身を除く): 24193460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 523, 545, 1046, 1090, 1853, 2092, 2180, 2615, 3706, 5230, 7412, 8891, 9265, 10460, 17782, 18530, 35564, 37060, 44455, 57007, 88910, 114014, 177820, 228028, 285035, 570070, 969119, 1140140, 1938238, 3876476, 4845595, 9691190, 19382380]

約数ペア:

[(1, 19382380), (2, 9691190), (4, 4845595), (5, 3876476), (10, 1938238), (17, 1140140), (20, 969119), (34, 570070), (68, 285035), (85, 228028), (109, 177820), (170, 114014), (218, 88910), (340, 57007), (436, 44455), (523, 37060), (545, 35564), (1046, 18530), (1090, 17782), (1853, 10460), (2092, 9265), (2180, 8891), (2615, 7412), (3706, 5230)]