640207680

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2027}}^1$

素因数の和:2101

約数の個数: 224

約数和(自身を含む): 2373636096

約数和(自身を除く): 1733428416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 47, 48, 56, 60, 64, 70, 80, 84, 94, 96, 105, 112, 120, 140, 141, 160, 168, 188, 192, 210, 224, 235, 240, 280, 282, 320, 329, 336, 376, 420, 448, 470, 480, 560, 564, 658, 672, 705, 752, 840, 940, 960, 987, 1120, 1128, 1316, 1344, 1410, 1504, 1645, 1680, 1880, 1974, 2027, 2240, 2256, 2632, 2820, 3008, 3290, 3360, 3760, 3948, 4054, 4512, 4935, 5264, 5640, 6081, 6580, 6720, 7520, 7896, 8108, 9024, 9870, 10135, 10528, 11280, 12162, 13160, 14189, 15040, 15792, 16216, 19740, 20270, 21056, 22560, 24324, 26320, 28378, 30405, 31584, 32432, 39480, 40540, 42567, 45120, 48648, 52640, 56756, 60810, 63168, 64864, 70945, 78960, 81080, 85134, 95269, 97296, 105280, 113512, 121620, 129728, 141890, 157920, 162160, 170268, 190538, 194592, 212835, 227024, 243240, 283780, 285807, 315840, 324320, 340536, 381076, 389184, 425670, 454048, 476345, 486480, 567560, 571614, 648640, 666883, 681072, 762152, 851340, 908096, 952690, 972960, 1135120, 1143228, 1333766, 1362144, 1429035, 1524304, 1702680, 1905380, 1945920, 2000649, 2270240, 2286456, 2667532, 2724288, 2858070, 3048608, 3334415, 3405360, 3810760, 4001298, 4540480, 4572912, 5335064, 5716140, 6097216, 6668830, 6810720, 7621520, 8002596, 9145824, 10003245, 10670128, 11432280, 13337660, 13621440, 15243040, 16005192, 18291648, 20006490, 21340256, 22864560, 26675320, 30486080, 32010384, 40012980, 42680512, 45729120, 53350640, 64020768, 80025960, 91458240, 106701280, 128041536, 160051920, 213402560, 320103840, 640207680]

約数ペア:

[(1, 640207680), (2, 320103840), (3, 213402560), (4, 160051920), (5, 128041536), (6, 106701280), (7, 91458240), (8, 80025960), (10, 64020768), (12, 53350640), (14, 45729120), (15, 42680512), (16, 40012980), (20, 32010384), (21, 30486080), (24, 26675320), (28, 22864560), (30, 21340256), (32, 20006490), (35, 18291648), (40, 16005192), (42, 15243040), (47, 13621440), (48, 13337660), (56, 11432280), (60, 10670128), (64, 10003245), (70, 9145824), (80, 8002596), (84, 7621520), (94, 6810720), (96, 6668830), (105, 6097216), (112, 5716140), (120, 5335064), (140, 4572912), (141, 4540480), (160, 4001298), (168, 3810760), (188, 3405360), (192, 3334415), (210, 3048608), (224, 2858070), (235, 2724288), (240, 2667532), (280, 2286456), (282, 2270240), (320, 2000649), (329, 1945920), (336, 1905380), (376, 1702680), (420, 1524304), (448, 1429035), (470, 1362144), (480, 1333766), (560, 1143228), (564, 1135120), (658, 972960), (672, 952690), (705, 908096), (752, 851340), (840, 762152), (940, 681072), (960, 666883), (987, 648640), (1120, 571614), (1128, 567560), (1316, 486480), (1344, 476345), (1410, 454048), (1504, 425670), (1645, 389184), (1680, 381076), (1880, 340536), (1974, 324320), (2027, 315840), (2240, 285807), (2256, 283780), (2632, 243240), (2820, 227024), (3008, 212835), (3290, 194592), (3360, 190538), (3760, 170268), (3948, 162160), (4054, 157920), (4512, 141890), (4935, 129728), (5264, 121620), (5640, 113512), (6081, 105280), (6580, 97296), (6720, 95269), (7520, 85134), (7896, 81080), (8108, 78960), (9024, 70945), (9870, 64864), (10135, 63168), (10528, 60810), (11280, 56756), (12162, 52640), (13160, 48648), (14189, 45120), (15040, 42567), (15792, 40540), (16216, 39480), (19740, 32432), (20270, 31584), (21056, 30405), (22560, 28378), (24324, 26320)]