247197720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:926

約数の個数: 256

約数和(自身を含む): 955514880

約数和(自身を除く): 708317160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 434, 440, 462, 465, 616, 620, 651, 660, 682, 744, 770, 840, 863, 868, 924, 930, 1023, 1085, 1155, 1240, 1302, 1320, 1364, 1540, 1705, 1726, 1736, 1848, 1860, 2046, 2170, 2310, 2387, 2589, 2604, 2728, 3080, 3255, 3410, 3452, 3720, 4092, 4315, 4340, 4620, 4774, 5115, 5178, 5208, 6041, 6510, 6820, 6904, 7161, 8184, 8630, 8680, 9240, 9493, 9548, 10230, 10356, 11935, 12082, 12945, 13020, 13640, 14322, 17260, 18123, 18986, 19096, 20460, 20712, 23870, 24164, 25890, 26040, 26753, 28479, 28644, 30205, 34520, 35805, 36246, 37972, 40920, 47465, 47740, 48328, 51780, 53506, 56958, 57288, 60410, 66451, 71610, 72492, 75944, 80259, 90615, 94930, 95480, 103560, 107012, 113916, 120820, 132902, 133765, 142395, 143220, 144984, 160518, 181230, 187271, 189860, 199353, 214024, 227832, 241640, 265804, 267530, 284790, 286440, 294283, 321036, 332255, 362460, 374542, 379720, 398706, 401295, 531608, 535060, 561813, 569580, 588566, 642072, 664510, 724920, 749084, 797412, 802590, 882849, 936355, 996765, 1070120, 1123626, 1139160, 1177132, 1329020, 1471415, 1498168, 1594824, 1605180, 1765698, 1872710, 1993530, 2059981, 2247252, 2354264, 2658040, 2809065, 2942830, 3210360, 3531396, 3745420, 3987060, 4119962, 4414245, 4494504, 5618130, 5885660, 6179943, 7062792, 7490840, 7974120, 8239924, 8828490, 10299905, 11236260, 11771320, 12359886, 16479848, 17656980, 20599810, 22472520, 24719772, 30899715, 35313960, 41199620, 49439544, 61799430, 82399240, 123598860, 247197720]

約数ペア:

[(1, 247197720), (2, 123598860), (3, 82399240), (4, 61799430), (5, 49439544), (6, 41199620), (7, 35313960), (8, 30899715), (10, 24719772), (11, 22472520), (12, 20599810), (14, 17656980), (15, 16479848), (20, 12359886), (21, 11771320), (22, 11236260), (24, 10299905), (28, 8828490), (30, 8239924), (31, 7974120), (33, 7490840), (35, 7062792), (40, 6179943), (42, 5885660), (44, 5618130), (55, 4494504), (56, 4414245), (60, 4119962), (62, 3987060), (66, 3745420), (70, 3531396), (77, 3210360), (84, 2942830), (88, 2809065), (93, 2658040), (105, 2354264), (110, 2247252), (120, 2059981), (124, 1993530), (132, 1872710), (140, 1765698), (154, 1605180), (155, 1594824), (165, 1498168), (168, 1471415), (186, 1329020), (210, 1177132), (217, 1139160), (220, 1123626), (231, 1070120), (248, 996765), (264, 936355), (280, 882849), (308, 802590), (310, 797412), (330, 749084), (341, 724920), (372, 664510), (385, 642072), (420, 588566), (434, 569580), (440, 561813), (462, 535060), (465, 531608), (616, 401295), (620, 398706), (651, 379720), (660, 374542), (682, 362460), (744, 332255), (770, 321036), (840, 294283), (863, 286440), (868, 284790), (924, 267530), (930, 265804), (1023, 241640), (1085, 227832), (1155, 214024), (1240, 199353), (1302, 189860), (1320, 187271), (1364, 181230), (1540, 160518), (1705, 144984), (1726, 143220), (1736, 142395), (1848, 133765), (1860, 132902), (2046, 120820), (2170, 113916), (2310, 107012), (2387, 103560), (2589, 95480), (2604, 94930), (2728, 90615), (3080, 80259), (3255, 75944), (3410, 72492), (3452, 71610), (3720, 66451), (4092, 60410), (4315, 57288), (4340, 56958), (4620, 53506), (4774, 51780), (5115, 48328), (5178, 47740), (5208, 47465), (6041, 40920), (6510, 37972), (6820, 36246), (6904, 35805), (7161, 34520), (8184, 30205), (8630, 28644), (8680, 28479), (9240, 26753), (9493, 26040), (9548, 25890), (10230, 24164), (10356, 23870), (11935, 20712), (12082, 20460), (12945, 19096), (13020, 18986), (13640, 18123), (14322, 17260)]