18738408

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 55440000

約数和(自身を除く): 36701592

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 29, 38, 39, 52, 57, 58, 76, 78, 87, 104, 109, 114, 116, 152, 156, 174, 218, 228, 232, 247, 312, 327, 348, 377, 436, 456, 494, 551, 654, 696, 741, 754, 872, 988, 1102, 1131, 1308, 1417, 1482, 1508, 1653, 1976, 2071, 2204, 2262, 2616, 2834, 2964, 3016, 3161, 3306, 4142, 4251, 4408, 4524, 5668, 5928, 6213, 6322, 6612, 7163, 8284, 8502, 9048, 9483, 11336, 12426, 12644, 13224, 14326, 16568, 17004, 18966, 21489, 24852, 25288, 26923, 28652, 34008, 37932, 41093, 42978, 49704, 53846, 57304, 60059, 75864, 80769, 82186, 85956, 107692, 120118, 123279, 161538, 164372, 171912, 180177, 215384, 240236, 246558, 323076, 328744, 360354, 480472, 493116, 646152, 720708, 780767, 986232, 1441416, 1561534, 2342301, 3123068, 4684602, 6246136, 9369204, 18738408]

約数ペア:

[(1, 18738408), (2, 9369204), (3, 6246136), (4, 4684602), (6, 3123068), (8, 2342301), (12, 1561534), (13, 1441416), (19, 986232), (24, 780767), (26, 720708), (29, 646152), (38, 493116), (39, 480472), (52, 360354), (57, 328744), (58, 323076), (76, 246558), (78, 240236), (87, 215384), (104, 180177), (109, 171912), (114, 164372), (116, 161538), (152, 123279), (156, 120118), (174, 107692), (218, 85956), (228, 82186), (232, 80769), (247, 75864), (312, 60059), (327, 57304), (348, 53846), (377, 49704), (436, 42978), (456, 41093), (494, 37932), (551, 34008), (654, 28652), (696, 26923), (741, 25288), (754, 24852), (872, 21489), (988, 18966), (1102, 17004), (1131, 16568), (1308, 14326), (1417, 13224), (1482, 12644), (1508, 12426), (1653, 11336), (1976, 9483), (2071, 9048), (2204, 8502), (2262, 8284), (2616, 7163), (2834, 6612), (2964, 6322), (3016, 6213), (3161, 5928), (3306, 5668), (4142, 4524), (4251, 4408)]