16719220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{389}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 23641100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 389, 614, 778, 1228, 1535, 1556, 1945, 2149, 2723, 3070, 3890, 4298, 5446, 6140, 7780, 8596, 10745, 10892, 13615, 21490, 27230, 42980, 54460, 119423, 238846, 477692, 597115, 835961, 1194230, 1671922, 2388460, 3343844, 4179805, 8359610, 16719220]

約数ペア:

[(1, 16719220), (2, 8359610), (4, 4179805), (5, 3343844), (7, 2388460), (10, 1671922), (14, 1194230), (20, 835961), (28, 597115), (35, 477692), (70, 238846), (140, 119423), (307, 54460), (389, 42980), (614, 27230), (778, 21490), (1228, 13615), (1535, 10892), (1556, 10745), (1945, 8596), (2149, 7780), (2723, 6140), (3070, 5446), (3890, 4298)]