78719680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 112

約数和(自身を含む): 204825600

約数和(自身を除く): 126105920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 127, 130, 149, 160, 208, 254, 260, 298, 320, 416, 508, 520, 596, 635, 745, 832, 1016, 1040, 1192, 1270, 1490, 1651, 1937, 2032, 2080, 2384, 2540, 2980, 3302, 3874, 4064, 4160, 4768, 5080, 5960, 6604, 7748, 8128, 8255, 9536, 9685, 10160, 11920, 13208, 15496, 16510, 18923, 19370, 20320, 23840, 26416, 30992, 33020, 37846, 38740, 40640, 47680, 52832, 61984, 66040, 75692, 77480, 94615, 105664, 123968, 132080, 151384, 154960, 189230, 245999, 264160, 302768, 309920, 378460, 491998, 528320, 605536, 619840, 756920, 983996, 1211072, 1229995, 1513840, 1967992, 2459990, 3027680, 3935984, 4919980, 6055360, 7871968, 9839960, 15743936, 19679920, 39359840, 78719680]

約数ペア:

[(1, 78719680), (2, 39359840), (4, 19679920), (5, 15743936), (8, 9839960), (10, 7871968), (13, 6055360), (16, 4919980), (20, 3935984), (26, 3027680), (32, 2459990), (40, 1967992), (52, 1513840), (64, 1229995), (65, 1211072), (80, 983996), (104, 756920), (127, 619840), (130, 605536), (149, 528320), (160, 491998), (208, 378460), (254, 309920), (260, 302768), (298, 264160), (320, 245999), (416, 189230), (508, 154960), (520, 151384), (596, 132080), (635, 123968), (745, 105664), (832, 94615), (1016, 77480), (1040, 75692), (1192, 66040), (1270, 61984), (1490, 52832), (1651, 47680), (1937, 40640), (2032, 38740), (2080, 37846), (2384, 33020), (2540, 30992), (2980, 26416), (3302, 23840), (3874, 20320), (4064, 19370), (4160, 18923), (4768, 16510), (5080, 15496), (5960, 13208), (6604, 11920), (7748, 10160), (8128, 9685), (8255, 9536)]