28744688

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 69709824

約数和(自身を除く): 40965136

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 34, 56, 62, 68, 112, 119, 124, 136, 217, 238, 248, 272, 434, 476, 487, 496, 527, 868, 952, 974, 1054, 1736, 1904, 1948, 2108, 3409, 3472, 3689, 3896, 4216, 6818, 7378, 7792, 8279, 8432, 13636, 14756, 15097, 16558, 27272, 29512, 30194, 33116, 54544, 57953, 59024, 60388, 66232, 105679, 115906, 120776, 132464, 211358, 231812, 241552, 256649, 422716, 463624, 513298, 845432, 927248, 1026596, 1690864, 1796543, 2053192, 3593086, 4106384, 7186172, 14372344, 28744688]

約数ペア:

[(1, 28744688), (2, 14372344), (4, 7186172), (7, 4106384), (8, 3593086), (14, 2053192), (16, 1796543), (17, 1690864), (28, 1026596), (31, 927248), (34, 845432), (56, 513298), (62, 463624), (68, 422716), (112, 256649), (119, 241552), (124, 231812), (136, 211358), (217, 132464), (238, 120776), (248, 115906), (272, 105679), (434, 66232), (476, 60388), (487, 59024), (496, 57953), (527, 54544), (868, 33116), (952, 30194), (974, 29512), (1054, 27272), (1736, 16558), (1904, 15097), (1948, 14756), (2108, 13636), (3409, 8432), (3472, 8279), (3689, 7792), (3896, 7378), (4216, 6818)]