257670400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:221

約数の個数: 216

約数和(自身を含む): 727418720

約数和(自身を除く): 469748320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 64, 65, 76, 80, 95, 100, 104, 128, 130, 152, 160, 163, 190, 200, 208, 247, 256, 260, 304, 320, 325, 326, 380, 400, 416, 475, 494, 520, 608, 640, 650, 652, 760, 800, 815, 832, 950, 988, 1040, 1216, 1235, 1280, 1300, 1304, 1520, 1600, 1630, 1664, 1900, 1976, 2080, 2119, 2432, 2470, 2600, 2608, 3040, 3097, 3200, 3260, 3328, 3800, 3952, 4075, 4160, 4238, 4864, 4940, 5200, 5216, 6080, 6175, 6194, 6400, 6520, 7600, 7904, 8150, 8320, 8476, 9880, 10400, 10432, 10595, 12160, 12350, 12388, 13040, 15200, 15485, 15808, 16300, 16640, 16952, 19760, 20800, 20864, 21190, 24320, 24700, 24776, 26080, 30400, 30970, 31616, 32600, 33904, 39520, 40261, 41600, 41728, 42380, 49400, 49552, 52160, 52975, 60800, 61940, 63232, 65200, 67808, 77425, 79040, 80522, 83200, 84760, 98800, 99104, 104320, 105950, 121600, 123880, 130400, 135616, 154850, 158080, 161044, 169520, 197600, 198208, 201305, 208640, 211900, 247760, 260800, 271232, 309700, 316160, 322088, 339040, 395200, 396416, 402610, 423800, 495520, 521600, 542464, 619400, 644176, 678080, 790400, 792832, 805220, 847600, 991040, 1006525, 1043200, 1238800, 1288352, 1356160, 1580800, 1610440, 1695200, 1982080, 2013050, 2477600, 2576704, 2712320, 3220880, 3390400, 3964160, 4026100, 4955200, 5153408, 6441760, 6780800, 8052200, 9910400, 10306816, 12883520, 13561600, 16104400, 19820800, 25767040, 32208800, 51534080, 64417600, 128835200, 257670400]

約数ペア:

[(1, 257670400), (2, 128835200), (4, 64417600), (5, 51534080), (8, 32208800), (10, 25767040), (13, 19820800), (16, 16104400), (19, 13561600), (20, 12883520), (25, 10306816), (26, 9910400), (32, 8052200), (38, 6780800), (40, 6441760), (50, 5153408), (52, 4955200), (64, 4026100), (65, 3964160), (76, 3390400), (80, 3220880), (95, 2712320), (100, 2576704), (104, 2477600), (128, 2013050), (130, 1982080), (152, 1695200), (160, 1610440), (163, 1580800), (190, 1356160), (200, 1288352), (208, 1238800), (247, 1043200), (256, 1006525), (260, 991040), (304, 847600), (320, 805220), (325, 792832), (326, 790400), (380, 678080), (400, 644176), (416, 619400), (475, 542464), (494, 521600), (520, 495520), (608, 423800), (640, 402610), (650, 396416), (652, 395200), (760, 339040), (800, 322088), (815, 316160), (832, 309700), (950, 271232), (988, 260800), (1040, 247760), (1216, 211900), (1235, 208640), (1280, 201305), (1300, 198208), (1304, 197600), (1520, 169520), (1600, 161044), (1630, 158080), (1664, 154850), (1900, 135616), (1976, 130400), (2080, 123880), (2119, 121600), (2432, 105950), (2470, 104320), (2600, 99104), (2608, 98800), (3040, 84760), (3097, 83200), (3200, 80522), (3260, 79040), (3328, 77425), (3800, 67808), (3952, 65200), (4075, 63232), (4160, 61940), (4238, 60800), (4864, 52975), (4940, 52160), (5200, 49552), (5216, 49400), (6080, 42380), (6175, 41728), (6194, 41600), (6400, 40261), (6520, 39520), (7600, 33904), (7904, 32600), (8150, 31616), (8320, 30970), (8476, 30400), (9880, 26080), (10400, 24776), (10432, 24700), (10595, 24320), (12160, 21190), (12350, 20864), (12388, 20800), (13040, 19760), (15200, 16952), (15485, 16640), (15808, 16300)]