217705040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 240

約数和(自身を含む): 644601600

約数和(自身を除く): 426896560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 37, 38, 40, 49, 56, 70, 74, 76, 79, 80, 95, 98, 112, 133, 140, 148, 152, 158, 185, 190, 196, 245, 259, 266, 280, 296, 304, 316, 370, 380, 392, 395, 490, 518, 532, 553, 560, 592, 632, 665, 703, 740, 760, 784, 790, 931, 980, 1036, 1064, 1106, 1264, 1295, 1330, 1406, 1480, 1501, 1520, 1580, 1813, 1862, 1960, 2072, 2128, 2212, 2590, 2660, 2765, 2812, 2923, 2960, 3002, 3160, 3515, 3626, 3724, 3871, 3920, 4144, 4424, 4655, 4921, 5180, 5320, 5530, 5624, 5846, 6004, 6320, 7030, 7252, 7448, 7505, 7742, 8848, 9065, 9310, 9842, 10360, 10507, 10640, 11060, 11248, 11692, 12008, 14060, 14504, 14615, 14896, 15010, 15484, 18130, 18620, 19355, 19684, 20461, 20720, 21014, 22120, 23384, 24016, 24605, 28120, 29008, 29230, 30020, 30968, 34447, 36260, 37240, 38710, 39368, 40922, 42028, 44240, 46768, 49210, 52535, 55537, 56240, 58460, 60040, 61936, 68894, 72520, 73549, 74480, 77420, 78736, 81844, 84056, 98420, 102305, 105070, 111074, 116920, 120080, 137788, 143227, 145040, 147098, 154840, 163688, 168112, 172235, 196840, 204610, 210140, 222148, 233840, 275576, 277685, 286454, 294196, 309680, 327376, 344470, 367745, 388759, 393680, 409220, 420280, 444296, 551152, 555370, 572908, 588392, 688940, 716135, 735490, 777518, 818440, 840560, 888592, 1110740, 1145816, 1176784, 1377880, 1432270, 1470980, 1555036, 1636880, 1943795, 2221480, 2291632, 2721313, 2755760, 2864540, 2941960, 3110072, 3887590, 4442960, 5442626, 5729080, 5883920, 6220144, 7775180, 10885252, 11458160, 13606565, 15550360, 21770504, 27213130, 31100720, 43541008, 54426260, 108852520, 217705040]

約数ペア:

[(1, 217705040), (2, 108852520), (4, 54426260), (5, 43541008), (7, 31100720), (8, 27213130), (10, 21770504), (14, 15550360), (16, 13606565), (19, 11458160), (20, 10885252), (28, 7775180), (35, 6220144), (37, 5883920), (38, 5729080), (40, 5442626), (49, 4442960), (56, 3887590), (70, 3110072), (74, 2941960), (76, 2864540), (79, 2755760), (80, 2721313), (95, 2291632), (98, 2221480), (112, 1943795), (133, 1636880), (140, 1555036), (148, 1470980), (152, 1432270), (158, 1377880), (185, 1176784), (190, 1145816), (196, 1110740), (245, 888592), (259, 840560), (266, 818440), (280, 777518), (296, 735490), (304, 716135), (316, 688940), (370, 588392), (380, 572908), (392, 555370), (395, 551152), (490, 444296), (518, 420280), (532, 409220), (553, 393680), (560, 388759), (592, 367745), (632, 344470), (665, 327376), (703, 309680), (740, 294196), (760, 286454), (784, 277685), (790, 275576), (931, 233840), (980, 222148), (1036, 210140), (1064, 204610), (1106, 196840), (1264, 172235), (1295, 168112), (1330, 163688), (1406, 154840), (1480, 147098), (1501, 145040), (1520, 143227), (1580, 137788), (1813, 120080), (1862, 116920), (1960, 111074), (2072, 105070), (2128, 102305), (2212, 98420), (2590, 84056), (2660, 81844), (2765, 78736), (2812, 77420), (2923, 74480), (2960, 73549), (3002, 72520), (3160, 68894), (3515, 61936), (3626, 60040), (3724, 58460), (3871, 56240), (3920, 55537), (4144, 52535), (4424, 49210), (4655, 46768), (4921, 44240), (5180, 42028), (5320, 40922), (5530, 39368), (5624, 38710), (5846, 37240), (6004, 36260), (6320, 34447), (7030, 30968), (7252, 30020), (7448, 29230), (7505, 29008), (7742, 28120), (8848, 24605), (9065, 24016), (9310, 23384), (9842, 22120), (10360, 21014), (10507, 20720), (10640, 20461), (11060, 19684), (11248, 19355), (11692, 18620), (12008, 18130), (14060, 15484), (14504, 15010), (14615, 14896)]