2691220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 6612480

約数和(自身を除く): 3921260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 409, 470, 658, 818, 940, 1316, 1636, 1645, 2045, 2863, 3290, 4090, 5726, 6580, 8180, 11452, 14315, 19223, 28630, 38446, 57260, 76892, 96115, 134561, 192230, 269122, 384460, 538244, 672805, 1345610, 2691220]

約数ペア:

[(1, 2691220), (2, 1345610), (4, 672805), (5, 538244), (7, 384460), (10, 269122), (14, 192230), (20, 134561), (28, 96115), (35, 76892), (47, 57260), (70, 38446), (94, 28630), (140, 19223), (188, 14315), (235, 11452), (329, 8180), (409, 6580), (470, 5726), (658, 4090), (818, 3290), (940, 2863), (1316, 2045), (1636, 1645)]