28129644

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 75714912

約数和(自身を除く): 47585268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 53, 69, 92, 106, 138, 159, 207, 212, 276, 318, 414, 477, 636, 641, 828, 954, 1219, 1282, 1908, 1923, 2438, 2564, 3657, 3846, 4876, 5769, 7314, 7692, 10971, 11538, 14628, 14743, 21942, 23076, 29486, 33973, 43884, 44229, 58972, 67946, 88458, 101919, 132687, 135892, 176916, 203838, 265374, 305757, 407676, 530748, 611514, 781379, 1223028, 1562758, 2344137, 3125516, 4688274, 7032411, 9376548, 14064822, 28129644]

約数ペア:

[(1, 28129644), (2, 14064822), (3, 9376548), (4, 7032411), (6, 4688274), (9, 3125516), (12, 2344137), (18, 1562758), (23, 1223028), (36, 781379), (46, 611514), (53, 530748), (69, 407676), (92, 305757), (106, 265374), (138, 203838), (159, 176916), (207, 135892), (212, 132687), (276, 101919), (318, 88458), (414, 67946), (477, 58972), (636, 44229), (641, 43884), (828, 33973), (954, 29486), (1219, 23076), (1282, 21942), (1908, 14743), (1923, 14628), (2438, 11538), (2564, 10971), (3657, 7692), (3846, 7314), (4876, 5769)]