171123456

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:394

約数の個数: 144

約数和(自身を含む): 526534400

約数和(自身を除く): 355410944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 139, 168, 192, 224, 229, 256, 278, 336, 384, 417, 448, 458, 556, 672, 687, 768, 834, 896, 916, 973, 1112, 1344, 1374, 1603, 1668, 1792, 1832, 1946, 2224, 2688, 2748, 2919, 3206, 3336, 3664, 3892, 4448, 4809, 5376, 5496, 5838, 6412, 6672, 7328, 7784, 8896, 9618, 10992, 11676, 12824, 13344, 14656, 15568, 17792, 19236, 21984, 23352, 25648, 26688, 29312, 31136, 31831, 35584, 38472, 43968, 46704, 51296, 53376, 58624, 62272, 63662, 76944, 87936, 93408, 95493, 102592, 106752, 124544, 127324, 153888, 175872, 186816, 190986, 205184, 222817, 249088, 254648, 307776, 373632, 381972, 410368, 445634, 509296, 615552, 668451, 747264, 763944, 891268, 1018592, 1231104, 1336902, 1527888, 1782536, 2037184, 2673804, 3055776, 3565072, 4074368, 5347608, 6111552, 7130144, 8148736, 10695216, 12223104, 14260288, 21390432, 24446208, 28520576, 42780864, 57041152, 85561728, 171123456]

約数ペア:

[(1, 171123456), (2, 85561728), (3, 57041152), (4, 42780864), (6, 28520576), (7, 24446208), (8, 21390432), (12, 14260288), (14, 12223104), (16, 10695216), (21, 8148736), (24, 7130144), (28, 6111552), (32, 5347608), (42, 4074368), (48, 3565072), (56, 3055776), (64, 2673804), (84, 2037184), (96, 1782536), (112, 1527888), (128, 1336902), (139, 1231104), (168, 1018592), (192, 891268), (224, 763944), (229, 747264), (256, 668451), (278, 615552), (336, 509296), (384, 445634), (417, 410368), (448, 381972), (458, 373632), (556, 307776), (672, 254648), (687, 249088), (768, 222817), (834, 205184), (896, 190986), (916, 186816), (973, 175872), (1112, 153888), (1344, 127324), (1374, 124544), (1603, 106752), (1668, 102592), (1792, 95493), (1832, 93408), (1946, 87936), (2224, 76944), (2688, 63662), (2748, 62272), (2919, 58624), (3206, 53376), (3336, 51296), (3664, 46704), (3892, 43968), (4448, 38472), (4809, 35584), (5376, 31831), (5496, 31136), (5838, 29312), (6412, 26688), (6672, 25648), (7328, 23352), (7784, 21984), (8896, 19236), (9618, 17792), (10992, 15568), (11676, 14656), (12824, 13344)]