1665357560

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{404213}}^1$

素因数の和:404327

約数の個数: 32

約数和(自身を含む): 3783443040

約数和(自身を除く): 2118085480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 404213, 808426, 1616852, 2021065, 3233704, 4042130, 8084260, 16168520, 41633939, 83267878, 166535756, 208169695, 333071512, 416339390, 832678780, 1665357560]

約数ペア:

[(1, 1665357560), (2, 832678780), (4, 416339390), (5, 333071512), (8, 208169695), (10, 166535756), (20, 83267878), (40, 41633939), (103, 16168520), (206, 8084260), (412, 4042130), (515, 3233704), (824, 2021065), (1030, 1616852), (2060, 808426), (4120, 404213)]