17702980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21589}}^1$

素因数の和:21639

約数の個数: 24

約数和(自身を含む): 38084760

約数和(自身を除く): 20381780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 21589, 43178, 86356, 107945, 215890, 431780, 885149, 1770298, 3540596, 4425745, 8851490, 17702980]

約数ペア:

[(1, 17702980), (2, 8851490), (4, 4425745), (5, 3540596), (10, 1770298), (20, 885149), (41, 431780), (82, 215890), (164, 107945), (205, 86356), (410, 43178), (820, 21589)]