261719640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2703

約数の個数: 256

約数和(自身を含む): 1074124800

約数和(自身を除く): 812405160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 195, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 390, 420, 455, 468, 504, 520, 540, 546, 585, 630, 702, 728, 756, 780, 819, 840, 910, 936, 945, 1080, 1092, 1170, 1260, 1365, 1404, 1512, 1560, 1638, 1755, 1820, 1890, 2184, 2340, 2457, 2520, 2663, 2730, 2808, 3276, 3510, 3640, 3780, 4095, 4680, 4914, 5326, 5460, 6552, 7020, 7560, 7989, 8190, 9828, 10652, 10920, 12285, 13315, 14040, 15978, 16380, 18641, 19656, 21304, 23967, 24570, 26630, 31956, 32760, 34619, 37282, 39945, 47934, 49140, 53260, 55923, 63912, 69238, 71901, 74564, 79890, 93205, 95868, 98280, 103857, 106520, 111846, 119835, 138476, 143802, 149128, 159780, 167769, 173095, 186410, 191736, 207714, 223692, 239670, 242333, 276952, 279615, 287604, 311571, 319560, 335538, 346190, 359505, 372820, 415428, 447384, 479340, 484666, 503307, 519285, 559230, 575208, 623142, 671076, 692380, 719010, 726999, 745640, 830856, 838845, 934713, 958680, 969332, 1006614, 1038570, 1118460, 1211665, 1246284, 1342152, 1384760, 1438020, 1453998, 1557855, 1677690, 1869426, 1938664, 2013228, 2077140, 2180997, 2236920, 2423330, 2492568, 2516535, 2876040, 2907996, 3115710, 3355380, 3634995, 3738852, 4026456, 4154280, 4361994, 4673565, 4846660, 5033070, 5815992, 6231420, 6542991, 6710760, 7269990, 7477704, 8723988, 9347130, 9693320, 10066140, 10904985, 12462840, 13085982, 14539980, 17447976, 18694260, 20132280, 21809970, 26171964, 29079960, 32714955, 37388520, 43619940, 52343928, 65429910, 87239880, 130859820, 261719640]

約数ペア:

[(1, 261719640), (2, 130859820), (3, 87239880), (4, 65429910), (5, 52343928), (6, 43619940), (7, 37388520), (8, 32714955), (9, 29079960), (10, 26171964), (12, 21809970), (13, 20132280), (14, 18694260), (15, 17447976), (18, 14539980), (20, 13085982), (21, 12462840), (24, 10904985), (26, 10066140), (27, 9693320), (28, 9347130), (30, 8723988), (35, 7477704), (36, 7269990), (39, 6710760), (40, 6542991), (42, 6231420), (45, 5815992), (52, 5033070), (54, 4846660), (56, 4673565), (60, 4361994), (63, 4154280), (65, 4026456), (70, 3738852), (72, 3634995), (78, 3355380), (84, 3115710), (90, 2907996), (91, 2876040), (104, 2516535), (105, 2492568), (108, 2423330), (117, 2236920), (120, 2180997), (126, 2077140), (130, 2013228), (135, 1938664), (140, 1869426), (156, 1677690), (168, 1557855), (180, 1453998), (182, 1438020), (189, 1384760), (195, 1342152), (210, 1246284), (216, 1211665), (234, 1118460), (252, 1038570), (260, 1006614), (270, 969332), (273, 958680), (280, 934713), (312, 838845), (315, 830856), (351, 745640), (360, 726999), (364, 719010), (378, 692380), (390, 671076), (420, 623142), (455, 575208), (468, 559230), (504, 519285), (520, 503307), (540, 484666), (546, 479340), (585, 447384), (630, 415428), (702, 372820), (728, 359505), (756, 346190), (780, 335538), (819, 319560), (840, 311571), (910, 287604), (936, 279615), (945, 276952), (1080, 242333), (1092, 239670), (1170, 223692), (1260, 207714), (1365, 191736), (1404, 186410), (1512, 173095), (1560, 167769), (1638, 159780), (1755, 149128), (1820, 143802), (1890, 138476), (2184, 119835), (2340, 111846), (2457, 106520), (2520, 103857), (2663, 98280), (2730, 95868), (2808, 93205), (3276, 79890), (3510, 74564), (3640, 71901), (3780, 69238), (4095, 63912), (4680, 55923), (4914, 53260), (5326, 49140), (5460, 47934), (6552, 39945), (7020, 37282), (7560, 34619), (7989, 32760), (8190, 31956), (9828, 26630), (10652, 24570), (10920, 23967), (12285, 21304), (13315, 19656), (14040, 18641), (15978, 16380)]