209322905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{523}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 289751040

約数和(自身を除く): 80428135

約数列:

[1, 5, 11, 19, 55, 95, 209, 383, 523, 1045, 1915, 2615, 4213, 5753, 7277, 9937, 21065, 28765, 36385, 49685, 80047, 109307, 200309, 400235, 546535, 1001545, 2203399, 3805871, 11016995, 19029355, 41864581, 209322905]

約数ペア:

[(1, 209322905), (5, 41864581), (11, 19029355), (19, 11016995), (55, 3805871), (95, 2203399), (209, 1001545), (383, 546535), (523, 400235), (1045, 200309), (1915, 109307), (2615, 80047), (4213, 49685), (5753, 36385), (7277, 28765), (9937, 21065)]