221001040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{212501}}^1$

素因数の和:212527

約数の個数: 40

約数和(自身を含む): 553355208

約数和(自身を除く): 332354168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 212501, 425002, 850004, 1062505, 1700008, 2125010, 2762513, 3400016, 4250020, 5525026, 8500040, 11050052, 13812565, 17000080, 22100104, 27625130, 44200208, 55250260, 110500520, 221001040]

約数ペア:

[(1, 221001040), (2, 110500520), (4, 55250260), (5, 44200208), (8, 27625130), (10, 22100104), (13, 17000080), (16, 13812565), (20, 11050052), (26, 8500040), (40, 5525026), (52, 4250020), (65, 3400016), (80, 2762513), (104, 2125010), (130, 1700008), (208, 1062505), (260, 850004), (520, 425002), (1040, 212501)]