646239888

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20681}}^1$

素因数の和:20733

約数の個数: 120

約数和(自身を含む): 2133720576

約数和(自身を除く): 1487480688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 56, 62, 63, 72, 84, 93, 112, 124, 126, 144, 168, 186, 217, 248, 252, 279, 336, 372, 434, 496, 504, 558, 651, 744, 868, 1008, 1116, 1302, 1488, 1736, 1953, 2232, 2604, 3472, 3906, 4464, 5208, 7812, 10416, 15624, 20681, 31248, 41362, 62043, 82724, 124086, 144767, 165448, 186129, 248172, 289534, 330896, 372258, 434301, 496344, 579068, 641111, 744516, 868602, 992688, 1158136, 1282222, 1302903, 1489032, 1737204, 1923333, 2316272, 2564444, 2605806, 2978064, 3474408, 3846666, 4487777, 5128888, 5211612, 5769999, 6948816, 7693332, 8975554, 10257776, 10423224, 11539998, 13463331, 15386664, 17951108, 20846448, 23079996, 26926662, 30773328, 35902216, 40389993, 46159992, 53853324, 71804432, 80779986, 92319984, 107706648, 161559972, 215413296, 323119944, 646239888]

約数ペア:

[(1, 646239888), (2, 323119944), (3, 215413296), (4, 161559972), (6, 107706648), (7, 92319984), (8, 80779986), (9, 71804432), (12, 53853324), (14, 46159992), (16, 40389993), (18, 35902216), (21, 30773328), (24, 26926662), (28, 23079996), (31, 20846448), (36, 17951108), (42, 15386664), (48, 13463331), (56, 11539998), (62, 10423224), (63, 10257776), (72, 8975554), (84, 7693332), (93, 6948816), (112, 5769999), (124, 5211612), (126, 5128888), (144, 4487777), (168, 3846666), (186, 3474408), (217, 2978064), (248, 2605806), (252, 2564444), (279, 2316272), (336, 1923333), (372, 1737204), (434, 1489032), (496, 1302903), (504, 1282222), (558, 1158136), (651, 992688), (744, 868602), (868, 744516), (1008, 641111), (1116, 579068), (1302, 496344), (1488, 434301), (1736, 372258), (1953, 330896), (2232, 289534), (2604, 248172), (3472, 186129), (3906, 165448), (4464, 144767), (5208, 124086), (7812, 82724), (10416, 62043), (15624, 41362), (20681, 31248)]