28020174

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 75586560

約数和(自身を除く): 47566386

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 37, 38, 39, 42, 57, 73, 74, 78, 91, 111, 114, 133, 146, 182, 219, 222, 247, 259, 266, 273, 399, 438, 481, 494, 511, 518, 546, 703, 741, 777, 798, 949, 962, 1022, 1387, 1406, 1443, 1482, 1533, 1554, 1729, 1898, 2109, 2701, 2774, 2847, 2886, 3066, 3367, 3458, 4161, 4218, 4921, 5187, 5402, 5694, 6643, 6734, 8103, 8322, 9139, 9709, 9842, 10101, 10374, 13286, 14763, 16206, 18031, 18278, 18907, 19418, 19929, 20202, 27417, 29127, 29526, 35113, 36062, 37814, 39858, 51319, 54093, 54834, 56721, 58254, 63973, 70226, 102638, 105339, 108186, 113442, 126217, 127946, 153957, 191919, 210678, 245791, 252434, 307914, 359233, 378651, 383838, 491582, 667147, 718466, 737373, 757302, 1077699, 1334294, 1474746, 2001441, 2155398, 4002882, 4670029, 9340058, 14010087, 28020174]

約数ペア:

[(1, 28020174), (2, 14010087), (3, 9340058), (6, 4670029), (7, 4002882), (13, 2155398), (14, 2001441), (19, 1474746), (21, 1334294), (26, 1077699), (37, 757302), (38, 737373), (39, 718466), (42, 667147), (57, 491582), (73, 383838), (74, 378651), (78, 359233), (91, 307914), (111, 252434), (114, 245791), (133, 210678), (146, 191919), (182, 153957), (219, 127946), (222, 126217), (247, 113442), (259, 108186), (266, 105339), (273, 102638), (399, 70226), (438, 63973), (481, 58254), (494, 56721), (511, 54834), (518, 54093), (546, 51319), (703, 39858), (741, 37814), (777, 36062), (798, 35113), (949, 29526), (962, 29127), (1022, 27417), (1387, 20202), (1406, 19929), (1443, 19418), (1482, 18907), (1533, 18278), (1554, 18031), (1729, 16206), (1898, 14763), (2109, 13286), (2701, 10374), (2774, 10101), (2847, 9842), (2886, 9709), (3066, 9139), (3367, 8322), (3458, 8103), (4161, 6734), (4218, 6643), (4921, 5694), (5187, 5402)]