16644920

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3889}}^1$

素因数の和:4007

約数の個数: 32

約数和(自身を含む): 37810800

約数和(自身を除く): 21165880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 3889, 4280, 7778, 15556, 19445, 31112, 38890, 77780, 155560, 416123, 832246, 1664492, 2080615, 3328984, 4161230, 8322460, 16644920]

約数ペア:

[(1, 16644920), (2, 8322460), (4, 4161230), (5, 3328984), (8, 2080615), (10, 1664492), (20, 832246), (40, 416123), (107, 155560), (214, 77780), (428, 38890), (535, 31112), (856, 19445), (1070, 15556), (2140, 7778), (3889, 4280)]