65565580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{172541}}^1$

素因数の和:172569

約数の個数: 24

約数和(自身を含む): 144935280

約数和(自身を除く): 79369700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 172541, 345082, 690164, 862705, 1725410, 3278279, 3450820, 6556558, 13113116, 16391395, 32782790, 65565580]

約数ペア:

[(1, 65565580), (2, 32782790), (4, 16391395), (5, 13113116), (10, 6556558), (19, 3450820), (20, 3278279), (38, 1725410), (76, 862705), (95, 690164), (190, 345082), (380, 172541)]