1554878780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 216

約数和(自身を含む): 4260017664

約数和(自身を除く): 2705138884

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 127, 130, 140, 155, 182, 196, 217, 245, 254, 260, 310, 364, 403, 434, 455, 490, 508, 620, 635, 637, 806, 868, 889, 910, 961, 980, 1085, 1270, 1274, 1519, 1612, 1651, 1778, 1820, 1922, 2015, 2170, 2540, 2548, 2821, 3038, 3185, 3302, 3556, 3844, 3937, 4030, 4340, 4445, 4805, 5642, 6076, 6223, 6370, 6604, 6727, 7595, 7874, 8060, 8255, 8890, 9610, 11284, 11557, 12446, 12493, 12740, 13454, 14105, 15190, 15748, 16510, 17780, 19220, 19685, 19747, 23114, 24892, 24986, 26908, 27559, 28210, 30380, 31115, 33020, 33635, 39370, 39494, 46228, 47089, 49972, 51181, 55118, 56420, 57785, 62230, 62465, 67270, 78740, 78988, 80899, 87451, 94178, 98735, 102362, 110236, 115570, 122047, 124460, 124930, 134540, 137795, 161798, 174902, 188356, 192913, 197470, 204724, 231140, 235445, 244094, 249860, 255905, 275590, 323596, 349804, 358267, 385826, 394940, 404495, 437255, 470890, 488188, 511810, 551180, 610235, 612157, 716534, 771652, 808990, 854329, 874510, 941780, 964565, 1023620, 1220470, 1224314, 1433068, 1586611, 1617980, 1708658, 1749020, 1791335, 1929130, 2440940, 2448628, 2507869, 3060785, 3173222, 3417316, 3582670, 3858260, 4271645, 5015738, 5980303, 6121570, 6346444, 7165340, 7933055, 8543290, 10031476, 11106277, 11960606, 12243140, 12539345, 15866110, 17086580, 22212554, 23921212, 25078690, 29901515, 31732220, 44425108, 50157380, 55531385, 59803030, 77743939, 111062770, 119606060, 155487878, 222125540, 310975756, 388719695, 777439390, 1554878780]

約数ペア:

[(1, 1554878780), (2, 777439390), (4, 388719695), (5, 310975756), (7, 222125540), (10, 155487878), (13, 119606060), (14, 111062770), (20, 77743939), (26, 59803030), (28, 55531385), (31, 50157380), (35, 44425108), (49, 31732220), (52, 29901515), (62, 25078690), (65, 23921212), (70, 22212554), (91, 17086580), (98, 15866110), (124, 12539345), (127, 12243140), (130, 11960606), (140, 11106277), (155, 10031476), (182, 8543290), (196, 7933055), (217, 7165340), (245, 6346444), (254, 6121570), (260, 5980303), (310, 5015738), (364, 4271645), (403, 3858260), (434, 3582670), (455, 3417316), (490, 3173222), (508, 3060785), (620, 2507869), (635, 2448628), (637, 2440940), (806, 1929130), (868, 1791335), (889, 1749020), (910, 1708658), (961, 1617980), (980, 1586611), (1085, 1433068), (1270, 1224314), (1274, 1220470), (1519, 1023620), (1612, 964565), (1651, 941780), (1778, 874510), (1820, 854329), (1922, 808990), (2015, 771652), (2170, 716534), (2540, 612157), (2548, 610235), (2821, 551180), (3038, 511810), (3185, 488188), (3302, 470890), (3556, 437255), (3844, 404495), (3937, 394940), (4030, 385826), (4340, 358267), (4445, 349804), (4805, 323596), (5642, 275590), (6076, 255905), (6223, 249860), (6370, 244094), (6604, 235445), (6727, 231140), (7595, 204724), (7874, 197470), (8060, 192913), (8255, 188356), (8890, 174902), (9610, 161798), (11284, 137795), (11557, 134540), (12446, 124930), (12493, 124460), (12740, 122047), (13454, 115570), (14105, 110236), (15190, 102362), (15748, 98735), (16510, 94178), (17780, 87451), (19220, 80899), (19685, 78988), (19747, 78740), (23114, 67270), (24892, 62465), (24986, 62230), (26908, 57785), (27559, 56420), (28210, 55118), (30380, 51181), (31115, 49972), (33020, 47089), (33635, 46228), (39370, 39494)]