1800000038

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{3881}}^1\times {\mathrm{5393}}^1$

素因数の和:9319

約数の個数: 16

約数和(自身を含む): 2764015056

約数和(自身を除く): 964015018

約数列:

[1, 2, 43, 86, 3881, 5393, 7762, 10786, 166883, 231899, 333766, 463798, 20930233, 41860466, 900000019, 1800000038]

約数ペア:

[(1, 1800000038), (2, 900000019), (43, 41860466), (86, 20930233), (3881, 463798), (5393, 333766), (7762, 231899), (10786, 166883)]