19991712

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:302

約数の個数: 96

約数和(自身を含む): 57492288

約数和(自身を除く): 37500576

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 83, 96, 104, 156, 166, 193, 208, 249, 312, 332, 386, 416, 498, 579, 624, 664, 772, 996, 1079, 1158, 1248, 1328, 1544, 1992, 2158, 2316, 2509, 2656, 3088, 3237, 3984, 4316, 4632, 5018, 6176, 6474, 7527, 7968, 8632, 9264, 10036, 12948, 15054, 16019, 17264, 18528, 20072, 25896, 30108, 32038, 34528, 40144, 48057, 51792, 60216, 64076, 80288, 96114, 103584, 120432, 128152, 192228, 208247, 240864, 256304, 384456, 416494, 512608, 624741, 768912, 832988, 1249482, 1537824, 1665976, 2498964, 3331952, 4997928, 6663904, 9995856, 19991712]

約数ペア:

[(1, 19991712), (2, 9995856), (3, 6663904), (4, 4997928), (6, 3331952), (8, 2498964), (12, 1665976), (13, 1537824), (16, 1249482), (24, 832988), (26, 768912), (32, 624741), (39, 512608), (48, 416494), (52, 384456), (78, 256304), (83, 240864), (96, 208247), (104, 192228), (156, 128152), (166, 120432), (193, 103584), (208, 96114), (249, 80288), (312, 64076), (332, 60216), (386, 51792), (416, 48057), (498, 40144), (579, 34528), (624, 32038), (664, 30108), (772, 25896), (996, 20072), (1079, 18528), (1158, 17264), (1248, 16019), (1328, 15054), (1544, 12948), (1992, 10036), (2158, 9264), (2316, 8632), (2509, 7968), (2656, 7527), (3088, 6474), (3237, 6176), (3984, 5018), (4316, 4632)]