28409784

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 82736640

約数和(自身を除く): 54326856

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 23, 24, 26, 37, 39, 46, 52, 69, 74, 78, 92, 104, 107, 111, 138, 148, 156, 184, 214, 222, 276, 296, 299, 312, 321, 428, 444, 481, 552, 598, 642, 851, 856, 888, 897, 962, 1196, 1284, 1391, 1443, 1702, 1794, 1924, 2392, 2461, 2553, 2568, 2782, 2886, 3404, 3588, 3848, 3959, 4173, 4922, 5106, 5564, 5772, 6808, 7176, 7383, 7918, 8346, 9844, 10212, 11063, 11128, 11544, 11877, 14766, 15836, 16692, 19688, 20424, 22126, 23754, 29532, 31672, 31993, 33189, 33384, 44252, 47508, 51467, 59064, 63986, 66378, 88504, 91057, 95016, 95979, 102934, 127972, 132756, 154401, 182114, 191958, 205868, 255944, 265512, 273171, 308802, 364228, 383916, 411736, 546342, 617604, 728456, 767832, 1092684, 1183741, 1235208, 2185368, 2367482, 3551223, 4734964, 7102446, 9469928, 14204892, 28409784]

約数ペア:

[(1, 28409784), (2, 14204892), (3, 9469928), (4, 7102446), (6, 4734964), (8, 3551223), (12, 2367482), (13, 2185368), (23, 1235208), (24, 1183741), (26, 1092684), (37, 767832), (39, 728456), (46, 617604), (52, 546342), (69, 411736), (74, 383916), (78, 364228), (92, 308802), (104, 273171), (107, 265512), (111, 255944), (138, 205868), (148, 191958), (156, 182114), (184, 154401), (214, 132756), (222, 127972), (276, 102934), (296, 95979), (299, 95016), (312, 91057), (321, 88504), (428, 66378), (444, 63986), (481, 59064), (552, 51467), (598, 47508), (642, 44252), (851, 33384), (856, 33189), (888, 31993), (897, 31672), (962, 29532), (1196, 23754), (1284, 22126), (1391, 20424), (1443, 19688), (1702, 16692), (1794, 15836), (1924, 14766), (2392, 11877), (2461, 11544), (2553, 11128), (2568, 11063), (2782, 10212), (2886, 9844), (3404, 8346), (3588, 7918), (3848, 7383), (3959, 7176), (4173, 6808), (4922, 5772), (5106, 5564)]