18989107205

素因数分解:

$5^1\times {\mathrm{19}}^3\times {\mathrm{553699}}^1$

素因数の和:553761

約数の個数: 16

約数和(自身を含む): 24052728000

約数和(自身を除く): 5063620795

約数列:

[1, 5, 19, 95, 361, 1805, 6859, 34295, 553699, 2768495, 10520281, 52601405, 199885339, 999426695, 3797821441, 18989107205]

約数ペア:

[(1, 18989107205), (5, 3797821441), (19, 999426695), (95, 199885339), (361, 52601405), (1805, 10520281), (6859, 2768495), (34295, 553699)]