16956040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3889}}^1$

素因数の和:4009

約数の個数: 32

約数和(自身を含む): 38511000

約数和(自身を除く): 21554960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3889, 4360, 7778, 15556, 19445, 31112, 38890, 77780, 155560, 423901, 847802, 1695604, 2119505, 3391208, 4239010, 8478020, 16956040]

約数ペア:

[(1, 16956040), (2, 8478020), (4, 4239010), (5, 3391208), (8, 2119505), (10, 1695604), (20, 847802), (40, 423901), (109, 155560), (218, 77780), (436, 38890), (545, 31112), (872, 19445), (1090, 15556), (2180, 7778), (3889, 4360)]