28139160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 97574400

約数和(自身を除く): 69435240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 139, 140, 168, 210, 241, 278, 280, 417, 420, 482, 556, 695, 723, 834, 840, 964, 973, 1112, 1205, 1390, 1446, 1668, 1687, 1928, 1946, 2085, 2410, 2780, 2892, 2919, 3336, 3374, 3615, 3892, 4170, 4820, 4865, 5061, 5560, 5784, 5838, 6748, 7230, 7784, 8340, 8435, 9640, 9730, 10122, 11676, 13496, 14460, 14595, 16680, 16870, 19460, 20244, 23352, 25305, 28920, 29190, 33499, 33740, 38920, 40488, 50610, 58380, 66998, 67480, 100497, 101220, 116760, 133996, 167495, 200994, 202440, 234493, 267992, 334990, 401988, 468986, 502485, 669980, 703479, 803976, 937972, 1004970, 1172465, 1339960, 1406958, 1875944, 2009940, 2344930, 2813916, 3517395, 4019880, 4689860, 5627832, 7034790, 9379720, 14069580, 28139160]

約数ペア:

[(1, 28139160), (2, 14069580), (3, 9379720), (4, 7034790), (5, 5627832), (6, 4689860), (7, 4019880), (8, 3517395), (10, 2813916), (12, 2344930), (14, 2009940), (15, 1875944), (20, 1406958), (21, 1339960), (24, 1172465), (28, 1004970), (30, 937972), (35, 803976), (40, 703479), (42, 669980), (56, 502485), (60, 468986), (70, 401988), (84, 334990), (105, 267992), (120, 234493), (139, 202440), (140, 200994), (168, 167495), (210, 133996), (241, 116760), (278, 101220), (280, 100497), (417, 67480), (420, 66998), (482, 58380), (556, 50610), (695, 40488), (723, 38920), (834, 33740), (840, 33499), (964, 29190), (973, 28920), (1112, 25305), (1205, 23352), (1390, 20244), (1446, 19460), (1668, 16870), (1687, 16680), (1928, 14595), (1946, 14460), (2085, 13496), (2410, 11676), (2780, 10122), (2892, 9730), (2919, 9640), (3336, 8435), (3374, 8340), (3615, 7784), (3892, 7230), (4170, 6748), (4820, 5838), (4865, 5784), (5061, 5560)]