28195524

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{881}}^1$

素因数の和:1025

約数の個数: 72

約数和(自身を含む): 82188288

約数和(自身を除く): 53992764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 762, 881, 889, 1143, 1524, 1762, 1778, 2286, 2643, 2667, 3524, 3556, 4572, 5286, 5334, 6167, 7929, 8001, 10572, 10668, 12334, 15858, 16002, 18501, 24668, 31716, 32004, 37002, 55503, 74004, 111006, 111887, 222012, 223774, 335661, 447548, 671322, 783209, 1006983, 1342644, 1566418, 2013966, 2349627, 3132836, 4027932, 4699254, 7048881, 9398508, 14097762, 28195524]

約数ペア:

[(1, 28195524), (2, 14097762), (3, 9398508), (4, 7048881), (6, 4699254), (7, 4027932), (9, 3132836), (12, 2349627), (14, 2013966), (18, 1566418), (21, 1342644), (28, 1006983), (36, 783209), (42, 671322), (63, 447548), (84, 335661), (126, 223774), (127, 222012), (252, 111887), (254, 111006), (381, 74004), (508, 55503), (762, 37002), (881, 32004), (889, 31716), (1143, 24668), (1524, 18501), (1762, 16002), (1778, 15858), (2286, 12334), (2643, 10668), (2667, 10572), (3524, 8001), (3556, 7929), (4572, 6167), (5286, 5334)]