20571001985

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{2477}}^1$

素因数の和:2670

約数の個数: 48

約数和(自身を含む): 26918692416

約数和(自身を除く): 6347690431

約数列:

[1, 5, 19, 43, 95, 107, 215, 361, 535, 817, 1805, 2033, 2477, 4085, 4601, 10165, 12385, 15523, 23005, 38627, 47063, 77615, 87419, 106511, 193135, 235315, 265039, 437095, 532555, 894197, 1325195, 1660961, 2023709, 4470985, 5035741, 8304805, 10118545, 11396677, 25178705, 38450471, 56983385, 95679079, 192252355, 216536863, 478395395, 1082684315, 4114200397, 20571001985]

約数ペア:

[(1, 20571001985), (5, 4114200397), (19, 1082684315), (43, 478395395), (95, 216536863), (107, 192252355), (215, 95679079), (361, 56983385), (535, 38450471), (817, 25178705), (1805, 11396677), (2033, 10118545), (2477, 8304805), (4085, 5035741), (4601, 4470985), (10165, 2023709), (12385, 1660961), (15523, 1325195), (23005, 894197), (38627, 532555), (47063, 437095), (77615, 265039), (87419, 235315), (106511, 193135)]