164890880

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1$

素因数の和:285

約数の個数: 216

約数和(自身を含む): 503314560

約数和(自身を除く): 338423680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 128, 140, 154, 160, 176, 196, 220, 224, 239, 245, 256, 280, 308, 320, 352, 385, 392, 440, 448, 478, 490, 539, 560, 616, 640, 704, 770, 784, 880, 896, 956, 980, 1078, 1120, 1195, 1232, 1280, 1408, 1540, 1568, 1673, 1760, 1792, 1912, 1960, 2156, 2240, 2390, 2464, 2629, 2695, 2816, 3080, 3136, 3346, 3520, 3824, 3920, 4312, 4480, 4780, 4928, 5258, 5390, 6160, 6272, 6692, 7040, 7648, 7840, 8365, 8624, 8960, 9560, 9856, 10516, 10780, 11711, 12320, 12544, 13145, 13384, 14080, 15296, 15680, 16730, 17248, 18403, 19120, 19712, 21032, 21560, 23422, 24640, 26290, 26768, 30592, 31360, 33460, 34496, 36806, 38240, 42064, 43120, 46844, 49280, 52580, 53536, 58555, 61184, 62720, 66920, 68992, 73612, 76480, 84128, 86240, 92015, 93688, 98560, 105160, 107072, 117110, 128821, 133840, 137984, 147224, 152960, 168256, 172480, 184030, 187376, 210320, 214144, 234220, 257642, 267680, 294448, 305920, 336512, 344960, 368060, 374752, 420640, 428288, 468440, 515284, 535360, 588896, 644105, 673024, 689920, 736120, 749504, 841280, 936880, 1030568, 1070720, 1177792, 1288210, 1472240, 1499008, 1682560, 1873760, 2061136, 2141440, 2355584, 2576420, 2944480, 2998016, 3365120, 3747520, 4122272, 4711168, 5152840, 5888960, 7495040, 8244544, 10305680, 11777920, 14990080, 16489088, 20611360, 23555840, 32978176, 41222720, 82445440, 164890880]

約数ペア:

[(1, 164890880), (2, 82445440), (4, 41222720), (5, 32978176), (7, 23555840), (8, 20611360), (10, 16489088), (11, 14990080), (14, 11777920), (16, 10305680), (20, 8244544), (22, 7495040), (28, 5888960), (32, 5152840), (35, 4711168), (40, 4122272), (44, 3747520), (49, 3365120), (55, 2998016), (56, 2944480), (64, 2576420), (70, 2355584), (77, 2141440), (80, 2061136), (88, 1873760), (98, 1682560), (110, 1499008), (112, 1472240), (128, 1288210), (140, 1177792), (154, 1070720), (160, 1030568), (176, 936880), (196, 841280), (220, 749504), (224, 736120), (239, 689920), (245, 673024), (256, 644105), (280, 588896), (308, 535360), (320, 515284), (352, 468440), (385, 428288), (392, 420640), (440, 374752), (448, 368060), (478, 344960), (490, 336512), (539, 305920), (560, 294448), (616, 267680), (640, 257642), (704, 234220), (770, 214144), (784, 210320), (880, 187376), (896, 184030), (956, 172480), (980, 168256), (1078, 152960), (1120, 147224), (1195, 137984), (1232, 133840), (1280, 128821), (1408, 117110), (1540, 107072), (1568, 105160), (1673, 98560), (1760, 93688), (1792, 92015), (1912, 86240), (1960, 84128), (2156, 76480), (2240, 73612), (2390, 68992), (2464, 66920), (2629, 62720), (2695, 61184), (2816, 58555), (3080, 53536), (3136, 52580), (3346, 49280), (3520, 46844), (3824, 43120), (3920, 42064), (4312, 38240), (4480, 36806), (4780, 34496), (4928, 33460), (5258, 31360), (5390, 30592), (6160, 26768), (6272, 26290), (6692, 24640), (7040, 23422), (7648, 21560), (7840, 21032), (8365, 19712), (8624, 19120), (8960, 18403), (9560, 17248), (9856, 16730), (10516, 15680), (10780, 15296), (11711, 14080), (12320, 13384), (12544, 13145)]