28115808

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 144

約数和(自身を含む): 88482240

約数和(自身を除く): 60366432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 49, 56, 84, 86, 96, 98, 112, 129, 139, 147, 168, 172, 196, 224, 258, 278, 294, 301, 336, 344, 392, 417, 516, 556, 588, 602, 672, 688, 784, 834, 903, 973, 1032, 1112, 1176, 1204, 1376, 1568, 1668, 1806, 1946, 2064, 2107, 2224, 2352, 2408, 2919, 3336, 3612, 3892, 4128, 4214, 4448, 4704, 4816, 5838, 5977, 6321, 6672, 6811, 7224, 7784, 8428, 9632, 11676, 11954, 12642, 13344, 13622, 14448, 15568, 16856, 17931, 20433, 23352, 23908, 25284, 27244, 28896, 31136, 33712, 35862, 40866, 41839, 46704, 47816, 50568, 54488, 67424, 71724, 81732, 83678, 93408, 95632, 101136, 108976, 125517, 143448, 163464, 167356, 191264, 202272, 217952, 251034, 286896, 292873, 326928, 334712, 502068, 573792, 585746, 653856, 669424, 878619, 1004136, 1171492, 1338848, 1757238, 2008272, 2342984, 3514476, 4016544, 4685968, 7028952, 9371936, 14057904, 28115808]

約数ペア:

[(1, 28115808), (2, 14057904), (3, 9371936), (4, 7028952), (6, 4685968), (7, 4016544), (8, 3514476), (12, 2342984), (14, 2008272), (16, 1757238), (21, 1338848), (24, 1171492), (28, 1004136), (32, 878619), (42, 669424), (43, 653856), (48, 585746), (49, 573792), (56, 502068), (84, 334712), (86, 326928), (96, 292873), (98, 286896), (112, 251034), (129, 217952), (139, 202272), (147, 191264), (168, 167356), (172, 163464), (196, 143448), (224, 125517), (258, 108976), (278, 101136), (294, 95632), (301, 93408), (336, 83678), (344, 81732), (392, 71724), (417, 67424), (516, 54488), (556, 50568), (588, 47816), (602, 46704), (672, 41839), (688, 40866), (784, 35862), (834, 33712), (903, 31136), (973, 28896), (1032, 27244), (1112, 25284), (1176, 23908), (1204, 23352), (1376, 20433), (1568, 17931), (1668, 16856), (1806, 15568), (1946, 14448), (2064, 13622), (2107, 13344), (2224, 12642), (2352, 11954), (2408, 11676), (2919, 9632), (3336, 8428), (3612, 7784), (3892, 7224), (4128, 6811), (4214, 6672), (4448, 6321), (4704, 5977), (4816, 5838)]