180239920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4409}}^1$

素因数の和:4502

約数の個数: 80

約数和(自身を含む): 485593920

約数和(自身を除く): 305354000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 4409, 5110, 5840, 8176, 8818, 10220, 17636, 20440, 22045, 30863, 35272, 40880, 44090, 61726, 70544, 88180, 123452, 154315, 176360, 246904, 308630, 321857, 352720, 493808, 617260, 643714, 1234520, 1287428, 1609285, 2252999, 2469040, 2574856, 3218570, 4505998, 5149712, 6437140, 9011996, 11264995, 12874280, 18023992, 22529990, 25748560, 36047984, 45059980, 90119960, 180239920]

約数ペア:

[(1, 180239920), (2, 90119960), (4, 45059980), (5, 36047984), (7, 25748560), (8, 22529990), (10, 18023992), (14, 12874280), (16, 11264995), (20, 9011996), (28, 6437140), (35, 5149712), (40, 4505998), (56, 3218570), (70, 2574856), (73, 2469040), (80, 2252999), (112, 1609285), (140, 1287428), (146, 1234520), (280, 643714), (292, 617260), (365, 493808), (511, 352720), (560, 321857), (584, 308630), (730, 246904), (1022, 176360), (1168, 154315), (1460, 123452), (2044, 88180), (2555, 70544), (2920, 61726), (4088, 44090), (4409, 40880), (5110, 35272), (5840, 30863), (8176, 22045), (8818, 20440), (10220, 17636)]