28617876

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 89689600

約数和(自身を除く): 61071724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 43, 57, 63, 76, 84, 86, 114, 126, 129, 133, 139, 171, 172, 228, 252, 258, 266, 278, 301, 342, 387, 399, 417, 516, 532, 556, 602, 684, 774, 798, 817, 834, 903, 973, 1197, 1204, 1251, 1548, 1596, 1634, 1668, 1806, 1946, 2394, 2451, 2502, 2641, 2709, 2919, 3268, 3612, 3892, 4788, 4902, 5004, 5282, 5418, 5719, 5838, 5977, 7353, 7923, 8757, 9804, 10564, 10836, 11438, 11676, 11954, 14706, 15846, 17157, 17514, 17931, 18487, 22876, 23769, 23908, 29412, 31692, 34314, 35028, 35862, 36974, 41839, 47538, 51471, 53793, 55461, 68628, 71724, 73948, 83678, 95076, 102942, 107586, 110922, 113563, 125517, 166383, 167356, 205884, 215172, 221844, 227126, 251034, 332766, 340689, 376551, 454252, 502068, 665532, 681378, 753102, 794941, 1022067, 1362756, 1506204, 1589882, 2044134, 2384823, 3179764, 4088268, 4769646, 7154469, 9539292, 14308938, 28617876]

約数ペア:

[(1, 28617876), (2, 14308938), (3, 9539292), (4, 7154469), (6, 4769646), (7, 4088268), (9, 3179764), (12, 2384823), (14, 2044134), (18, 1589882), (19, 1506204), (21, 1362756), (28, 1022067), (36, 794941), (38, 753102), (42, 681378), (43, 665532), (57, 502068), (63, 454252), (76, 376551), (84, 340689), (86, 332766), (114, 251034), (126, 227126), (129, 221844), (133, 215172), (139, 205884), (171, 167356), (172, 166383), (228, 125517), (252, 113563), (258, 110922), (266, 107586), (278, 102942), (301, 95076), (342, 83678), (387, 73948), (399, 71724), (417, 68628), (516, 55461), (532, 53793), (556, 51471), (602, 47538), (684, 41839), (774, 36974), (798, 35862), (817, 35028), (834, 34314), (903, 31692), (973, 29412), (1197, 23908), (1204, 23769), (1251, 22876), (1548, 18487), (1596, 17931), (1634, 17514), (1668, 17157), (1806, 15846), (1946, 14706), (2394, 11954), (2451, 11676), (2502, 11438), (2641, 10836), (2709, 10564), (2919, 9804), (3268, 8757), (3612, 7923), (3892, 7353), (4788, 5977), (4902, 5838), (5004, 5719), (5282, 5418)]