178720212

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 499226112

約数和(自身を除く): 320505900

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 37, 43, 44, 46, 66, 69, 74, 86, 92, 111, 129, 132, 138, 148, 172, 222, 253, 258, 276, 407, 444, 473, 506, 516, 759, 814, 851, 946, 989, 1012, 1221, 1369, 1419, 1518, 1591, 1628, 1702, 1892, 1978, 2442, 2553, 2738, 2838, 2967, 3036, 3182, 3404, 3956, 4107, 4773, 4884, 5106, 5476, 5676, 5934, 6364, 8214, 9361, 9546, 10212, 10879, 11868, 15059, 16428, 17501, 18722, 19092, 21758, 28083, 30118, 31487, 32637, 35002, 36593, 37444, 43516, 45177, 52503, 56166, 58867, 60236, 62974, 65274, 70004, 73186, 90354, 94461, 105006, 109779, 112332, 117734, 125948, 130548, 146372, 176601, 180708, 188922, 210012, 219558, 235468, 346357, 353202, 377844, 402523, 439116, 647537, 692714, 706404, 805046, 1039071, 1207569, 1295074, 1353941, 1385428, 1610092, 1942611, 2078142, 2415138, 2590148, 2707882, 3885222, 4061823, 4156284, 4830276, 5415764, 7770444, 8123646, 14893351, 16247292, 29786702, 44680053, 59573404, 89360106, 178720212]

約数ペア:

[(1, 178720212), (2, 89360106), (3, 59573404), (4, 44680053), (6, 29786702), (11, 16247292), (12, 14893351), (22, 8123646), (23, 7770444), (33, 5415764), (37, 4830276), (43, 4156284), (44, 4061823), (46, 3885222), (66, 2707882), (69, 2590148), (74, 2415138), (86, 2078142), (92, 1942611), (111, 1610092), (129, 1385428), (132, 1353941), (138, 1295074), (148, 1207569), (172, 1039071), (222, 805046), (253, 706404), (258, 692714), (276, 647537), (407, 439116), (444, 402523), (473, 377844), (506, 353202), (516, 346357), (759, 235468), (814, 219558), (851, 210012), (946, 188922), (989, 180708), (1012, 176601), (1221, 146372), (1369, 130548), (1419, 125948), (1518, 117734), (1591, 112332), (1628, 109779), (1702, 105006), (1892, 94461), (1978, 90354), (2442, 73186), (2553, 70004), (2738, 65274), (2838, 62974), (2967, 60236), (3036, 58867), (3182, 56166), (3404, 52503), (3956, 45177), (4107, 43516), (4773, 37444), (4884, 36593), (5106, 35002), (5476, 32637), (5676, 31487), (5934, 30118), (6364, 28083), (8214, 21758), (9361, 19092), (9546, 18722), (10212, 17501), (10879, 16428), (11868, 15059)]