661481572

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{17681}}^1$

素因数の和:17931

約数の個数: 24

約数和(自身を含む): 1188230400

約数和(自身を除く): 526748828

約数列:

[1, 2, 4, 47, 94, 188, 199, 398, 796, 9353, 17681, 18706, 35362, 37412, 70724, 831007, 1662014, 3324028, 3518519, 7037038, 14074076, 165370393, 330740786, 661481572]

約数ペア:

[(1, 661481572), (2, 330740786), (4, 165370393), (47, 14074076), (94, 7037038), (188, 3518519), (199, 3324028), (398, 1662014), (796, 831007), (9353, 70724), (17681, 37412), (18706, 35362)]