20980232

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30730168

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 46, 49, 52, 56, 91, 92, 98, 104, 161, 179, 182, 184, 196, 299, 322, 358, 364, 392, 598, 637, 644, 716, 728, 1127, 1196, 1253, 1274, 1288, 1432, 2093, 2254, 2327, 2392, 2506, 2548, 4117, 4186, 4508, 4654, 5012, 5096, 8234, 8372, 8771, 9016, 9308, 10024, 14651, 16289, 16468, 16744, 17542, 18616, 28819, 29302, 32578, 32936, 35084, 53521, 57638, 58604, 65156, 70168, 107042, 114023, 115276, 117208, 130312, 201733, 214084, 228046, 230552, 374647, 403466, 428168, 456092, 749294, 806932, 912184, 1498588, 1613864, 2622529, 2997176, 5245058, 10490116, 20980232]

約数ペア:

[(1, 20980232), (2, 10490116), (4, 5245058), (7, 2997176), (8, 2622529), (13, 1613864), (14, 1498588), (23, 912184), (26, 806932), (28, 749294), (46, 456092), (49, 428168), (52, 403466), (56, 374647), (91, 230552), (92, 228046), (98, 214084), (104, 201733), (161, 130312), (179, 117208), (182, 115276), (184, 114023), (196, 107042), (299, 70168), (322, 65156), (358, 58604), (364, 57638), (392, 53521), (598, 35084), (637, 32936), (644, 32578), (716, 29302), (728, 28819), (1127, 18616), (1196, 17542), (1253, 16744), (1274, 16468), (1288, 16289), (1432, 14651), (2093, 10024), (2254, 9308), (2327, 9016), (2392, 8771), (2506, 8372), (2548, 8234), (4117, 5096), (4186, 5012), (4508, 4654)]