19716480

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{163}}^1$

素因数の和:198

約数の個数: 256

約数和(自身を含む): 80294400

約数和(自身を除く): 60577920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 163, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 326, 336, 360, 378, 384, 420, 432, 448, 480, 489, 504, 540, 560, 576, 630, 640, 652, 672, 720, 756, 815, 840, 864, 896, 945, 960, 978, 1008, 1080, 1120, 1141, 1152, 1260, 1304, 1344, 1440, 1467, 1512, 1630, 1680, 1728, 1890, 1920, 1956, 2016, 2160, 2240, 2282, 2445, 2520, 2608, 2688, 2880, 2934, 3024, 3260, 3360, 3423, 3456, 3780, 3912, 4032, 4320, 4401, 4480, 4564, 4890, 5040, 5216, 5705, 5760, 5868, 6048, 6520, 6720, 6846, 7335, 7560, 7824, 8064, 8640, 8802, 9128, 9780, 10080, 10269, 10432, 11410, 11736, 12096, 13040, 13440, 13692, 14670, 15120, 15648, 17115, 17280, 17604, 18256, 19560, 20160, 20538, 20864, 22005, 22820, 23472, 24192, 26080, 27384, 29340, 30240, 30807, 31296, 34230, 35208, 36512, 39120, 40320, 41076, 44010, 45640, 46944, 51345, 52160, 54768, 58680, 60480, 61614, 62592, 68460, 70416, 73024, 78240, 82152, 88020, 91280, 93888, 102690, 104320, 109536, 117360, 120960, 123228, 136920, 140832, 146048, 154035, 156480, 164304, 176040, 182560, 187776, 205380, 219072, 234720, 246456, 273840, 281664, 308070, 312960, 328608, 352080, 365120, 410760, 438144, 469440, 492912, 547680, 563328, 616140, 657216, 704160, 730240, 821520, 938880, 985824, 1095360, 1232280, 1314432, 1408320, 1643040, 1971648, 2190720, 2464560, 2816640, 3286080, 3943296, 4929120, 6572160, 9858240, 19716480]

約数ペア:

[(1, 19716480), (2, 9858240), (3, 6572160), (4, 4929120), (5, 3943296), (6, 3286080), (7, 2816640), (8, 2464560), (9, 2190720), (10, 1971648), (12, 1643040), (14, 1408320), (15, 1314432), (16, 1232280), (18, 1095360), (20, 985824), (21, 938880), (24, 821520), (27, 730240), (28, 704160), (30, 657216), (32, 616140), (35, 563328), (36, 547680), (40, 492912), (42, 469440), (45, 438144), (48, 410760), (54, 365120), (56, 352080), (60, 328608), (63, 312960), (64, 308070), (70, 281664), (72, 273840), (80, 246456), (84, 234720), (90, 219072), (96, 205380), (105, 187776), (108, 182560), (112, 176040), (120, 164304), (126, 156480), (128, 154035), (135, 146048), (140, 140832), (144, 136920), (160, 123228), (163, 120960), (168, 117360), (180, 109536), (189, 104320), (192, 102690), (210, 93888), (216, 91280), (224, 88020), (240, 82152), (252, 78240), (270, 73024), (280, 70416), (288, 68460), (315, 62592), (320, 61614), (326, 60480), (336, 58680), (360, 54768), (378, 52160), (384, 51345), (420, 46944), (432, 45640), (448, 44010), (480, 41076), (489, 40320), (504, 39120), (540, 36512), (560, 35208), (576, 34230), (630, 31296), (640, 30807), (652, 30240), (672, 29340), (720, 27384), (756, 26080), (815, 24192), (840, 23472), (864, 22820), (896, 22005), (945, 20864), (960, 20538), (978, 20160), (1008, 19560), (1080, 18256), (1120, 17604), (1141, 17280), (1152, 17115), (1260, 15648), (1304, 15120), (1344, 14670), (1440, 13692), (1467, 13440), (1512, 13040), (1630, 12096), (1680, 11736), (1728, 11410), (1890, 10432), (1920, 10269), (1956, 10080), (2016, 9780), (2160, 9128), (2240, 8802), (2282, 8640), (2445, 8064), (2520, 7824), (2608, 7560), (2688, 7335), (2880, 6846), (2934, 6720), (3024, 6520), (3260, 6048), (3360, 5868), (3423, 5760), (3456, 5705), (3780, 5216), (3912, 5040), (4032, 4890), (4320, 4564), (4401, 4480)]