639775360

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:943

約数の個数: 192

約数和(自身を含む): 1858619520

約数和(自身を除く): 1218844160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 80, 92, 98, 112, 115, 128, 140, 160, 161, 184, 196, 224, 230, 245, 280, 320, 322, 368, 392, 448, 460, 490, 560, 640, 644, 736, 784, 805, 887, 896, 920, 980, 1120, 1127, 1288, 1472, 1568, 1610, 1774, 1840, 1960, 2240, 2254, 2576, 2944, 3136, 3220, 3548, 3680, 3920, 4435, 4480, 4508, 5152, 5635, 6209, 6272, 6440, 7096, 7360, 7840, 8870, 9016, 10304, 11270, 12418, 12880, 14192, 14720, 15680, 17740, 18032, 20401, 20608, 22540, 24836, 25760, 28384, 31045, 31360, 35480, 36064, 40802, 43463, 45080, 49672, 51520, 56768, 62090, 70960, 72128, 81604, 86926, 90160, 99344, 102005, 103040, 113536, 124180, 141920, 142807, 144256, 163208, 173852, 180320, 198688, 204010, 217315, 248360, 283840, 285614, 326416, 347704, 360640, 397376, 408020, 434630, 496720, 567680, 571228, 652832, 695408, 714035, 721280, 794752, 816040, 869260, 993440, 999649, 1142456, 1305664, 1390816, 1428070, 1632080, 1738520, 1986880, 1999298, 2284912, 2611328, 2781632, 2856140, 3264160, 3477040, 3973760, 3998596, 4569824, 4998245, 5563264, 5712280, 6528320, 6954080, 7997192, 9139648, 9996490, 11424560, 13056640, 13908160, 15994384, 18279296, 19992980, 22849120, 27816320, 31988768, 39985960, 45698240, 63977536, 79971920, 91396480, 127955072, 159943840, 319887680, 639775360]

約数ペア:

[(1, 639775360), (2, 319887680), (4, 159943840), (5, 127955072), (7, 91396480), (8, 79971920), (10, 63977536), (14, 45698240), (16, 39985960), (20, 31988768), (23, 27816320), (28, 22849120), (32, 19992980), (35, 18279296), (40, 15994384), (46, 13908160), (49, 13056640), (56, 11424560), (64, 9996490), (70, 9139648), (80, 7997192), (92, 6954080), (98, 6528320), (112, 5712280), (115, 5563264), (128, 4998245), (140, 4569824), (160, 3998596), (161, 3973760), (184, 3477040), (196, 3264160), (224, 2856140), (230, 2781632), (245, 2611328), (280, 2284912), (320, 1999298), (322, 1986880), (368, 1738520), (392, 1632080), (448, 1428070), (460, 1390816), (490, 1305664), (560, 1142456), (640, 999649), (644, 993440), (736, 869260), (784, 816040), (805, 794752), (887, 721280), (896, 714035), (920, 695408), (980, 652832), (1120, 571228), (1127, 567680), (1288, 496720), (1472, 434630), (1568, 408020), (1610, 397376), (1774, 360640), (1840, 347704), (1960, 326416), (2240, 285614), (2254, 283840), (2576, 248360), (2944, 217315), (3136, 204010), (3220, 198688), (3548, 180320), (3680, 173852), (3920, 163208), (4435, 144256), (4480, 142807), (4508, 141920), (5152, 124180), (5635, 113536), (6209, 103040), (6272, 102005), (6440, 99344), (7096, 90160), (7360, 86926), (7840, 81604), (8870, 72128), (9016, 70960), (10304, 62090), (11270, 56768), (12418, 51520), (12880, 49672), (14192, 45080), (14720, 43463), (15680, 40802), (17740, 36064), (18032, 35480), (20401, 31360), (20608, 31045), (22540, 28384), (24836, 25760)]