257003520

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 208

約数和(自身を含む): 849242880

約数和(自身を除く): 592239360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 89, 94, 96, 120, 128, 141, 160, 178, 188, 192, 235, 240, 256, 267, 282, 320, 356, 376, 384, 445, 470, 480, 512, 534, 564, 640, 705, 712, 752, 768, 890, 940, 960, 1024, 1068, 1128, 1280, 1335, 1410, 1424, 1504, 1536, 1780, 1880, 1920, 2048, 2136, 2256, 2560, 2670, 2820, 2848, 3008, 3072, 3560, 3760, 3840, 4096, 4183, 4272, 4512, 5120, 5340, 5640, 5696, 6016, 6144, 7120, 7520, 7680, 8366, 8544, 9024, 10240, 10680, 11280, 11392, 12032, 12288, 12549, 14240, 15040, 15360, 16732, 17088, 18048, 20480, 20915, 21360, 22560, 22784, 24064, 25098, 28480, 30080, 30720, 33464, 34176, 36096, 41830, 42720, 45120, 45568, 48128, 50196, 56960, 60160, 61440, 62745, 66928, 68352, 72192, 83660, 85440, 90240, 91136, 96256, 100392, 113920, 120320, 125490, 133856, 136704, 144384, 167320, 170880, 180480, 182272, 192512, 200784, 227840, 240640, 250980, 267712, 273408, 288768, 334640, 341760, 360960, 364544, 401568, 455680, 481280, 501960, 535424, 546816, 577536, 669280, 683520, 721920, 803136, 911360, 962560, 1003920, 1070848, 1093632, 1338560, 1367040, 1443840, 1606272, 1822720, 2007840, 2141696, 2677120, 2734080, 2887680, 3212544, 4015680, 4283392, 5354240, 5468160, 6425088, 8031360, 8566784, 10708480, 12850176, 16062720, 17133568, 21416960, 25700352, 32125440, 42833920, 51400704, 64250880, 85667840, 128501760, 257003520]

約数ペア:

[(1, 257003520), (2, 128501760), (3, 85667840), (4, 64250880), (5, 51400704), (6, 42833920), (8, 32125440), (10, 25700352), (12, 21416960), (15, 17133568), (16, 16062720), (20, 12850176), (24, 10708480), (30, 8566784), (32, 8031360), (40, 6425088), (47, 5468160), (48, 5354240), (60, 4283392), (64, 4015680), (80, 3212544), (89, 2887680), (94, 2734080), (96, 2677120), (120, 2141696), (128, 2007840), (141, 1822720), (160, 1606272), (178, 1443840), (188, 1367040), (192, 1338560), (235, 1093632), (240, 1070848), (256, 1003920), (267, 962560), (282, 911360), (320, 803136), (356, 721920), (376, 683520), (384, 669280), (445, 577536), (470, 546816), (480, 535424), (512, 501960), (534, 481280), (564, 455680), (640, 401568), (705, 364544), (712, 360960), (752, 341760), (768, 334640), (890, 288768), (940, 273408), (960, 267712), (1024, 250980), (1068, 240640), (1128, 227840), (1280, 200784), (1335, 192512), (1410, 182272), (1424, 180480), (1504, 170880), (1536, 167320), (1780, 144384), (1880, 136704), (1920, 133856), (2048, 125490), (2136, 120320), (2256, 113920), (2560, 100392), (2670, 96256), (2820, 91136), (2848, 90240), (3008, 85440), (3072, 83660), (3560, 72192), (3760, 68352), (3840, 66928), (4096, 62745), (4183, 61440), (4272, 60160), (4512, 56960), (5120, 50196), (5340, 48128), (5640, 45568), (5696, 45120), (6016, 42720), (6144, 41830), (7120, 36096), (7520, 34176), (7680, 33464), (8366, 30720), (8544, 30080), (9024, 28480), (10240, 25098), (10680, 24064), (11280, 22784), (11392, 22560), (12032, 21360), (12288, 20915), (12549, 20480), (14240, 18048), (15040, 17088), (15360, 16732)]