1669520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 3984120

約数和(自身を除く): 2314600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 509, 656, 820, 1018, 1640, 2036, 2545, 3280, 4072, 5090, 8144, 10180, 20360, 20869, 40720, 41738, 83476, 104345, 166952, 208690, 333904, 417380, 834760, 1669520]

約数ペア:

[(1, 1669520), (2, 834760), (4, 417380), (5, 333904), (8, 208690), (10, 166952), (16, 104345), (20, 83476), (40, 41738), (41, 40720), (80, 20869), (82, 20360), (164, 10180), (205, 8144), (328, 5090), (410, 4072), (509, 3280), (656, 2545), (820, 2036), (1018, 1640)]