218220190

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{54419}}^1$

素因数の和:54827

約数の個数: 16

約数和(自身を含む): 393783120

約数和(自身を除く): 175562930

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 54419, 108838, 272095, 544190, 21822019, 43644038, 109110095, 218220190]

約数ペア:

[(1, 218220190), (2, 109110095), (5, 43644038), (10, 21822019), (401, 544190), (802, 272095), (2005, 108838), (4010, 54419)]