28427724

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 85612800

約数和(自身を除く): 57185076

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 23, 26, 36, 38, 39, 46, 52, 57, 69, 76, 78, 92, 114, 117, 138, 139, 156, 171, 207, 228, 234, 247, 276, 278, 299, 342, 414, 417, 437, 468, 494, 556, 598, 684, 741, 828, 834, 874, 897, 988, 1196, 1251, 1311, 1482, 1668, 1748, 1794, 1807, 2223, 2502, 2622, 2641, 2691, 2964, 3197, 3588, 3614, 3933, 4446, 5004, 5244, 5282, 5382, 5421, 5681, 6394, 7228, 7866, 7923, 8892, 9591, 10564, 10764, 10842, 11362, 12788, 15732, 15846, 16263, 17043, 19182, 21684, 22724, 23769, 28773, 31692, 32526, 34086, 34333, 38364, 41561, 47538, 51129, 57546, 60743, 65052, 68172, 68666, 83122, 95076, 102258, 102999, 115092, 121486, 124683, 137332, 166244, 182229, 204516, 205998, 242972, 249366, 308997, 364458, 374049, 411996, 498732, 546687, 617994, 728916, 748098, 789659, 1093374, 1235988, 1496196, 1579318, 2186748, 2368977, 3158636, 4737954, 7106931, 9475908, 14213862, 28427724]

約数ペア:

[(1, 28427724), (2, 14213862), (3, 9475908), (4, 7106931), (6, 4737954), (9, 3158636), (12, 2368977), (13, 2186748), (18, 1579318), (19, 1496196), (23, 1235988), (26, 1093374), (36, 789659), (38, 748098), (39, 728916), (46, 617994), (52, 546687), (57, 498732), (69, 411996), (76, 374049), (78, 364458), (92, 308997), (114, 249366), (117, 242972), (138, 205998), (139, 204516), (156, 182229), (171, 166244), (207, 137332), (228, 124683), (234, 121486), (247, 115092), (276, 102999), (278, 102258), (299, 95076), (342, 83122), (414, 68666), (417, 68172), (437, 65052), (468, 60743), (494, 57546), (556, 51129), (598, 47538), (684, 41561), (741, 38364), (828, 34333), (834, 34086), (874, 32526), (897, 31692), (988, 28773), (1196, 23769), (1251, 22724), (1311, 21684), (1482, 19182), (1668, 17043), (1748, 16263), (1794, 15846), (1807, 15732), (2223, 12788), (2502, 11362), (2622, 10842), (2641, 10764), (2691, 10564), (2964, 9591), (3197, 8892), (3588, 7923), (3614, 7866), (3933, 7228), (4446, 6394), (5004, 5681), (5244, 5421), (5282, 5382)]