1280644

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 2441880

約数和(自身を除く): 1161236

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 509, 629, 1018, 1258, 2036, 2516, 8653, 17306, 18833, 34612, 37666, 75332, 320161, 640322, 1280644]

約数ペア:

[(1, 1280644), (2, 640322), (4, 320161), (17, 75332), (34, 37666), (37, 34612), (68, 18833), (74, 17306), (148, 8653), (509, 2516), (629, 2036), (1018, 1258)]