2559987014740

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{7757}}^1\times {\mathrm{16651}}^1$

素因数の和:25408

約数の個数: 48

約数和(自身を含む): 5382414503424

約数和(自身を除く): 2822427488684

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 7757, 9910, 15514, 16651, 19820, 31028, 33302, 38785, 66604, 77570, 83255, 155140, 166510, 333020, 7687187, 15374374, 16501141, 30748748, 33002282, 38435935, 66004564, 76871870, 82505705, 129161807, 153743740, 165011410, 258323614, 330022820, 516647228, 645809035, 1291618070, 2583236140, 127999350737, 255998701474, 511997402948, 639996753685, 1279993507370, 2559987014740]

約数ペア:

[(1, 2559987014740), (2, 1279993507370), (4, 639996753685), (5, 511997402948), (10, 255998701474), (20, 127999350737), (991, 2583236140), (1982, 1291618070), (3964, 645809035), (4955, 516647228), (7757, 330022820), (9910, 258323614), (15514, 165011410), (16651, 153743740), (19820, 129161807), (31028, 82505705), (33302, 76871870), (38785, 66004564), (66604, 38435935), (77570, 33002282), (83255, 30748748), (155140, 16501141), (166510, 15374374), (333020, 7687187)]