19719648

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 63292320

約数和(自身を除く): 43572672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 32, 36, 39, 46, 48, 52, 69, 72, 78, 92, 96, 104, 117, 138, 144, 156, 184, 207, 208, 229, 234, 276, 288, 299, 312, 368, 414, 416, 458, 468, 552, 598, 624, 687, 736, 828, 897, 916, 936, 1104, 1196, 1248, 1374, 1656, 1794, 1832, 1872, 2061, 2208, 2392, 2691, 2748, 2977, 3312, 3588, 3664, 3744, 4122, 4784, 5267, 5382, 5496, 5954, 6624, 7176, 7328, 8244, 8931, 9568, 10534, 10764, 10992, 11908, 14352, 15801, 16488, 17862, 21068, 21528, 21984, 23816, 26793, 28704, 31602, 32976, 35724, 42136, 43056, 47403, 47632, 53586, 63204, 65952, 68471, 71448, 84272, 86112, 94806, 95264, 107172, 126408, 136942, 142896, 168544, 189612, 205413, 214344, 252816, 273884, 285792, 379224, 410826, 428688, 505632, 547768, 616239, 758448, 821652, 857376, 1095536, 1232478, 1516896, 1643304, 2191072, 2464956, 3286608, 4929912, 6573216, 9859824, 19719648]

約数ペア:

[(1, 19719648), (2, 9859824), (3, 6573216), (4, 4929912), (6, 3286608), (8, 2464956), (9, 2191072), (12, 1643304), (13, 1516896), (16, 1232478), (18, 1095536), (23, 857376), (24, 821652), (26, 758448), (32, 616239), (36, 547768), (39, 505632), (46, 428688), (48, 410826), (52, 379224), (69, 285792), (72, 273884), (78, 252816), (92, 214344), (96, 205413), (104, 189612), (117, 168544), (138, 142896), (144, 136942), (156, 126408), (184, 107172), (207, 95264), (208, 94806), (229, 86112), (234, 84272), (276, 71448), (288, 68471), (299, 65952), (312, 63204), (368, 53586), (414, 47632), (416, 47403), (458, 43056), (468, 42136), (552, 35724), (598, 32976), (624, 31602), (687, 28704), (736, 26793), (828, 23816), (897, 21984), (916, 21528), (936, 21068), (1104, 17862), (1196, 16488), (1248, 15801), (1374, 14352), (1656, 11908), (1794, 10992), (1832, 10764), (1872, 10534), (2061, 9568), (2208, 8931), (2392, 8244), (2691, 7328), (2748, 7176), (2977, 6624), (3312, 5954), (3588, 5496), (3664, 5382), (3744, 5267), (4122, 4784)]