1722205

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:348

約数の個数: 16

約数和(自身を含む): 2193408

約数和(自身を除く): 471203

約数列:

[1, 5, 31, 41, 155, 205, 271, 1271, 1355, 6355, 8401, 11111, 42005, 55555, 344441, 1722205]

約数ペア:

[(1, 1722205), (5, 344441), (31, 55555), (41, 42005), (155, 11111), (205, 8401), (271, 6355), (1271, 1355)]