18954670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:505

約数の個数: 48

約数和(自身を含む): 40186368

約数和(自身を除く): 21231698

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 101, 202, 245, 383, 490, 505, 707, 766, 1010, 1414, 1915, 2681, 3535, 3830, 4949, 5362, 7070, 9898, 13405, 18767, 24745, 26810, 37534, 38683, 49490, 77366, 93835, 187670, 193415, 270781, 386830, 541562, 1353905, 1895467, 2707810, 3790934, 9477335, 18954670]

約数ペア:

[(1, 18954670), (2, 9477335), (5, 3790934), (7, 2707810), (10, 1895467), (14, 1353905), (35, 541562), (49, 386830), (70, 270781), (98, 193415), (101, 187670), (202, 93835), (245, 77366), (383, 49490), (490, 38683), (505, 37534), (707, 26810), (766, 24745), (1010, 18767), (1414, 13405), (1915, 9898), (2681, 7070), (3535, 5362), (3830, 4949)]