31389948

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 83144880

約数和(自身を除く): 51754932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 107, 116, 174, 214, 261, 281, 321, 348, 428, 522, 562, 642, 843, 963, 1044, 1124, 1284, 1686, 1926, 2529, 3103, 3372, 3852, 5058, 6206, 8149, 9309, 10116, 12412, 16298, 18618, 24447, 27927, 30067, 32596, 37236, 48894, 55854, 60134, 73341, 90201, 97788, 111708, 120268, 146682, 180402, 270603, 293364, 360804, 541206, 871943, 1082412, 1743886, 2615829, 3487772, 5231658, 7847487, 10463316, 15694974, 31389948]

約数ペア:

[(1, 31389948), (2, 15694974), (3, 10463316), (4, 7847487), (6, 5231658), (9, 3487772), (12, 2615829), (18, 1743886), (29, 1082412), (36, 871943), (58, 541206), (87, 360804), (107, 293364), (116, 270603), (174, 180402), (214, 146682), (261, 120268), (281, 111708), (321, 97788), (348, 90201), (428, 73341), (522, 60134), (562, 55854), (642, 48894), (843, 37236), (963, 32596), (1044, 30067), (1124, 27927), (1284, 24447), (1686, 18618), (1926, 16298), (2529, 12412), (3103, 10116), (3372, 9309), (3852, 8149), (5058, 6206)]