18088420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2749}}^1$

素因数の和:2812

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 26263580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2749, 3290, 5498, 6580, 10996, 13745, 19243, 27490, 38486, 54980, 76972, 96215, 129203, 192430, 258406, 384860, 516812, 646015, 904421, 1292030, 1808842, 2584060, 3617684, 4522105, 9044210, 18088420]

約数ペア:

[(1, 18088420), (2, 9044210), (4, 4522105), (5, 3617684), (7, 2584060), (10, 1808842), (14, 1292030), (20, 904421), (28, 646015), (35, 516812), (47, 384860), (70, 258406), (94, 192430), (140, 129203), (188, 96215), (235, 76972), (329, 54980), (470, 38486), (658, 27490), (940, 19243), (1316, 13745), (1645, 10996), (2749, 6580), (3290, 5498)]