198717840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:686

約数の個数: 160

約数和(自身を含む): 689420160

約数和(自身を除く): 490702320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 197, 216, 240, 270, 360, 394, 432, 467, 540, 591, 720, 788, 934, 985, 1080, 1182, 1401, 1576, 1773, 1868, 1970, 2160, 2335, 2364, 2802, 2955, 3152, 3546, 3736, 3940, 4203, 4670, 4728, 5319, 5604, 5910, 7005, 7092, 7472, 7880, 8406, 8865, 9340, 9456, 10638, 11208, 11820, 12609, 14010, 14184, 15760, 16812, 17730, 18680, 21015, 21276, 22416, 23640, 25218, 26595, 28020, 28368, 33624, 35460, 37360, 42030, 42552, 47280, 50436, 53190, 56040, 63045, 67248, 70920, 84060, 85104, 91999, 100872, 106380, 112080, 126090, 141840, 168120, 183998, 201744, 212760, 252180, 275997, 336240, 367996, 425520, 459995, 504360, 551994, 735992, 827991, 919990, 1008720, 1103988, 1379985, 1471984, 1655982, 1839980, 2207976, 2483973, 2759970, 3311964, 3679960, 4139955, 4415952, 4967946, 5519940, 6623928, 7359920, 8279910, 9935892, 11039880, 12419865, 13247856, 16559820, 19871784, 22079760, 24839730, 33119640, 39743568, 49679460, 66239280, 99358920, 198717840]

約数ペア:

[(1, 198717840), (2, 99358920), (3, 66239280), (4, 49679460), (5, 39743568), (6, 33119640), (8, 24839730), (9, 22079760), (10, 19871784), (12, 16559820), (15, 13247856), (16, 12419865), (18, 11039880), (20, 9935892), (24, 8279910), (27, 7359920), (30, 6623928), (36, 5519940), (40, 4967946), (45, 4415952), (48, 4139955), (54, 3679960), (60, 3311964), (72, 2759970), (80, 2483973), (90, 2207976), (108, 1839980), (120, 1655982), (135, 1471984), (144, 1379985), (180, 1103988), (197, 1008720), (216, 919990), (240, 827991), (270, 735992), (360, 551994), (394, 504360), (432, 459995), (467, 425520), (540, 367996), (591, 336240), (720, 275997), (788, 252180), (934, 212760), (985, 201744), (1080, 183998), (1182, 168120), (1401, 141840), (1576, 126090), (1773, 112080), (1868, 106380), (1970, 100872), (2160, 91999), (2335, 85104), (2364, 84060), (2802, 70920), (2955, 67248), (3152, 63045), (3546, 56040), (3736, 53190), (3940, 50436), (4203, 47280), (4670, 42552), (4728, 42030), (5319, 37360), (5604, 35460), (5910, 33624), (7005, 28368), (7092, 28020), (7472, 26595), (7880, 25218), (8406, 23640), (8865, 22416), (9340, 21276), (9456, 21015), (10638, 18680), (11208, 17730), (11820, 16812), (12609, 15760), (14010, 14184)]