71287920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9001}}^1$

素因数の和:9031

約数の個数: 120

約数和(自身を含む): 261202032

約数和(自身を除く): 189914112

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 9001, 18002, 27003, 36004, 45005, 54006, 72008, 81009, 90010, 99011, 108012, 135015, 144016, 162018, 180020, 198022, 216024, 270030, 297033, 324036, 360040, 396044, 405045, 432048, 495055, 540060, 594066, 648072, 720080, 792088, 810090, 891099, 990110, 1080120, 1188132, 1296144, 1485165, 1584176, 1620180, 1782198, 1980220, 2160240, 2376264, 2970330, 3240360, 3564396, 3960440, 4455495, 4752528, 5940660, 6480720, 7128792, 7920880, 8910990, 11881320, 14257584, 17821980, 23762640, 35643960, 71287920]

約数ペア:

[(1, 71287920), (2, 35643960), (3, 23762640), (4, 17821980), (5, 14257584), (6, 11881320), (8, 8910990), (9, 7920880), (10, 7128792), (11, 6480720), (12, 5940660), (15, 4752528), (16, 4455495), (18, 3960440), (20, 3564396), (22, 3240360), (24, 2970330), (30, 2376264), (33, 2160240), (36, 1980220), (40, 1782198), (44, 1620180), (45, 1584176), (48, 1485165), (55, 1296144), (60, 1188132), (66, 1080120), (72, 990110), (80, 891099), (88, 810090), (90, 792088), (99, 720080), (110, 648072), (120, 594066), (132, 540060), (144, 495055), (165, 432048), (176, 405045), (180, 396044), (198, 360040), (220, 324036), (240, 297033), (264, 270030), (330, 216024), (360, 198022), (396, 180020), (440, 162018), (495, 144016), (528, 135015), (660, 108012), (720, 99011), (792, 90010), (880, 81009), (990, 72008), (1320, 54006), (1584, 45005), (1980, 36004), (2640, 27003), (3960, 18002), (7920, 9001)]