689321880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1693}}^1$

素因数の和:1755

約数の個数: 256

約数和(自身を含む): 2561328000

約数和(自身を除く): 1872006120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 29, 30, 36, 39, 40, 45, 52, 54, 58, 60, 65, 72, 78, 87, 90, 104, 108, 116, 117, 120, 130, 135, 145, 156, 174, 180, 195, 216, 232, 234, 260, 261, 270, 290, 312, 348, 351, 360, 377, 390, 435, 468, 520, 522, 540, 580, 585, 696, 702, 754, 780, 783, 870, 936, 1044, 1080, 1131, 1160, 1170, 1305, 1404, 1508, 1560, 1566, 1693, 1740, 1755, 1885, 2088, 2262, 2340, 2610, 2808, 3016, 3132, 3386, 3393, 3480, 3510, 3770, 3915, 4524, 4680, 5079, 5220, 5655, 6264, 6772, 6786, 7020, 7540, 7830, 8465, 9048, 10158, 10179, 10440, 11310, 13544, 13572, 14040, 15080, 15237, 15660, 16930, 16965, 20316, 20358, 22009, 22620, 25395, 27144, 30474, 31320, 33860, 33930, 40632, 40716, 44018, 45240, 45711, 49097, 50790, 50895, 60948, 66027, 67720, 67860, 76185, 81432, 88036, 91422, 98194, 101580, 101790, 110045, 121896, 132054, 135720, 147291, 152370, 176072, 182844, 196388, 198081, 203160, 203580, 220090, 228555, 245485, 264108, 294582, 304740, 330135, 365688, 392776, 396162, 407160, 440180, 441873, 457110, 490970, 528216, 589164, 594243, 609480, 638261, 660270, 736455, 792324, 880360, 883746, 914220, 981940, 990405, 1178328, 1188486, 1276522, 1320540, 1325619, 1472910, 1584648, 1767492, 1828440, 1914783, 1963880, 1980810, 2209365, 2376972, 2553044, 2641080, 2651238, 2945820, 2971215, 3191305, 3534984, 3829566, 3961620, 4418730, 4753944, 5106088, 5302476, 5744349, 5891640, 5942430, 6382610, 6628095, 7659132, 7923240, 8837460, 9573915, 10604952, 11488698, 11884860, 12765220, 13256190, 15318264, 17233047, 17674920, 19147830, 22977396, 23769720, 25530440, 26512380, 28721745, 34466094, 38295660, 45954792, 53024760, 57443490, 68932188, 76591320, 86165235, 114886980, 137864376, 172330470, 229773960, 344660940, 689321880]

約数ペア:

[(1, 689321880), (2, 344660940), (3, 229773960), (4, 172330470), (5, 137864376), (6, 114886980), (8, 86165235), (9, 76591320), (10, 68932188), (12, 57443490), (13, 53024760), (15, 45954792), (18, 38295660), (20, 34466094), (24, 28721745), (26, 26512380), (27, 25530440), (29, 23769720), (30, 22977396), (36, 19147830), (39, 17674920), (40, 17233047), (45, 15318264), (52, 13256190), (54, 12765220), (58, 11884860), (60, 11488698), (65, 10604952), (72, 9573915), (78, 8837460), (87, 7923240), (90, 7659132), (104, 6628095), (108, 6382610), (116, 5942430), (117, 5891640), (120, 5744349), (130, 5302476), (135, 5106088), (145, 4753944), (156, 4418730), (174, 3961620), (180, 3829566), (195, 3534984), (216, 3191305), (232, 2971215), (234, 2945820), (260, 2651238), (261, 2641080), (270, 2553044), (290, 2376972), (312, 2209365), (348, 1980810), (351, 1963880), (360, 1914783), (377, 1828440), (390, 1767492), (435, 1584648), (468, 1472910), (520, 1325619), (522, 1320540), (540, 1276522), (580, 1188486), (585, 1178328), (696, 990405), (702, 981940), (754, 914220), (780, 883746), (783, 880360), (870, 792324), (936, 736455), (1044, 660270), (1080, 638261), (1131, 609480), (1160, 594243), (1170, 589164), (1305, 528216), (1404, 490970), (1508, 457110), (1560, 441873), (1566, 440180), (1693, 407160), (1740, 396162), (1755, 392776), (1885, 365688), (2088, 330135), (2262, 304740), (2340, 294582), (2610, 264108), (2808, 245485), (3016, 228555), (3132, 220090), (3386, 203580), (3393, 203160), (3480, 198081), (3510, 196388), (3770, 182844), (3915, 176072), (4524, 152370), (4680, 147291), (5079, 135720), (5220, 132054), (5655, 121896), (6264, 110045), (6772, 101790), (6786, 101580), (7020, 98194), (7540, 91422), (7830, 88036), (8465, 81432), (9048, 76185), (10158, 67860), (10179, 67720), (10440, 66027), (11310, 60948), (13544, 50895), (13572, 50790), (14040, 49097), (15080, 45711), (15237, 45240), (15660, 44018), (16930, 40716), (16965, 40632), (20316, 33930), (20358, 33860), (22009, 31320), (22620, 30474), (25395, 27144)]