12946160

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3947}}^1$

素因数の和:4001

約数の個数: 40

約数和(自身を含む): 30841776

約数和(自身を除く): 17895616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3947, 7894, 15788, 19735, 31576, 39470, 63152, 78940, 157880, 161827, 315760, 323654, 647308, 809135, 1294616, 1618270, 2589232, 3236540, 6473080, 12946160]

約数ペア:

[(1, 12946160), (2, 6473080), (4, 3236540), (5, 2589232), (8, 1618270), (10, 1294616), (16, 809135), (20, 647308), (40, 323654), (41, 315760), (80, 161827), (82, 157880), (164, 78940), (205, 63152), (328, 39470), (410, 31576), (656, 19735), (820, 15788), (1640, 7894), (3280, 3947)]