20708210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{673}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 39744432

約数和(自身を除く): 19036222

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 181, 362, 673, 905, 1346, 1810, 3077, 3365, 6154, 6730, 11441, 15385, 22882, 30770, 57205, 114410, 121813, 243626, 609065, 1218130, 2070821, 4141642, 10354105, 20708210]

約数ペア:

[(1, 20708210), (2, 10354105), (5, 4141642), (10, 2070821), (17, 1218130), (34, 609065), (85, 243626), (170, 121813), (181, 114410), (362, 57205), (673, 30770), (905, 22882), (1346, 15385), (1810, 11441), (3077, 6730), (3365, 6154)]