20939508716

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1\times {\mathrm{39709}}^1$

素因数の和:40266

約数の個数: 48

約数和(自身を含む): 43096468800

約数和(自身を除く): 22156960084

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 509, 518, 1018, 1036, 2036, 3563, 7126, 14252, 18833, 37666, 39709, 75332, 79418, 131831, 158836, 263662, 277963, 527324, 555926, 1111852, 1469233, 2938466, 5876932, 10284631, 20211881, 20569262, 40423762, 41138524, 80847524, 141483167, 282966334, 565932668, 747839597, 1495679194, 2991358388, 5234877179, 10469754358, 20939508716]

約数ペア:

[(1, 20939508716), (2, 10469754358), (4, 5234877179), (7, 2991358388), (14, 1495679194), (28, 747839597), (37, 565932668), (74, 282966334), (148, 141483167), (259, 80847524), (509, 41138524), (518, 40423762), (1018, 20569262), (1036, 20211881), (2036, 10284631), (3563, 5876932), (7126, 2938466), (14252, 1469233), (18833, 1111852), (37666, 555926), (39709, 527324), (75332, 277963), (79418, 263662), (131831, 158836)]