19961443320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 1024

約数和(自身を含む): 83607552000

約数和(自身を除く): 63646108680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 23, 24, 26, 28, 30, 35, 38, 39, 40, 42, 46, 47, 52, 56, 57, 60, 65, 69, 70, 76, 78, 84, 89, 91, 92, 94, 95, 104, 105, 114, 115, 120, 130, 133, 138, 140, 141, 152, 156, 161, 168, 178, 182, 184, 188, 190, 195, 210, 228, 230, 235, 247, 260, 266, 267, 273, 276, 280, 282, 285, 299, 312, 322, 329, 345, 356, 364, 376, 380, 390, 399, 420, 437, 445, 455, 456, 460, 470, 483, 494, 520, 532, 534, 546, 552, 564, 570, 598, 611, 623, 644, 658, 665, 690, 705, 712, 728, 741, 760, 780, 798, 805, 840, 874, 890, 893, 897, 910, 920, 940, 966, 987, 988, 1064, 1068, 1081, 1092, 1128, 1140, 1157, 1196, 1222, 1235, 1246, 1288, 1311, 1316, 1330, 1335, 1365, 1380, 1410, 1482, 1495, 1560, 1596, 1610, 1645, 1691, 1729, 1748, 1780, 1786, 1794, 1820, 1833, 1869, 1880, 1932, 1974, 1976, 1995, 2047, 2093, 2136, 2162, 2184, 2185, 2280, 2314, 2392, 2415, 2444, 2470, 2492, 2622, 2632, 2660, 2670, 2679, 2730, 2760, 2820, 2964, 2990, 3055, 3059, 3115, 3192, 3220, 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約数ペア:

[(1, 19961443320), (2, 9980721660), (3, 6653814440), (4, 4990360830), (5, 3992288664), (6, 3326907220), (7, 2851634760), (8, 2495180415), (10, 1996144332), (12, 1663453610), (13, 1535495640), (14, 1425817380), (15, 1330762888), (19, 1050602280), (20, 998072166), (21, 950544920), (23, 867888840), (24, 831726805), (26, 767747820), (28, 712908690), (30, 665381444), (35, 570326952), (38, 525301140), (39, 511831880), (40, 499036083), (42, 475272460), (46, 433944420), (47, 424711560), (52, 383873910), (56, 356454345), (57, 350200760), (60, 332690722), (65, 307099128), (69, 289296280), (70, 285163476), (76, 262650570), (78, 255915940), (84, 237636230), (89, 224285880), (91, 219356520), (92, 216972210), (94, 212355780), (95, 210120456), (104, 191936955), (105, 190108984), (114, 175100380), (115, 173577768), (120, 166345361), (130, 153549564), (133, 150086040), (138, 144648140), (140, 142581738), (141, 141570520), (152, 131325285), (156, 127957970), (161, 123984120), (168, 118818115), (178, 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