209260720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{63799}}^1$

素因数の和:63853

約数の個数: 40

約数和(自身を含む): 498405600

約数和(自身を除く): 289144880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 63799, 127598, 255196, 318995, 510392, 637990, 1020784, 1275980, 2551960, 2615759, 5103920, 5231518, 10463036, 13078795, 20926072, 26157590, 41852144, 52315180, 104630360, 209260720]

約数ペア:

[(1, 209260720), (2, 104630360), (4, 52315180), (5, 41852144), (8, 26157590), (10, 20926072), (16, 13078795), (20, 10463036), (40, 5231518), (41, 5103920), (80, 2615759), (82, 2551960), (164, 1275980), (205, 1020784), (328, 637990), (410, 510392), (656, 318995), (820, 255196), (1640, 127598), (3280, 63799)]