20289430

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{881}}^1$

素因数の和:949

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 23147306

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 49, 70, 94, 98, 235, 245, 329, 470, 490, 658, 881, 1645, 1762, 2303, 3290, 4405, 4606, 6167, 8810, 11515, 12334, 23030, 30835, 41407, 43169, 61670, 82814, 86338, 207035, 215845, 289849, 414070, 431690, 579698, 1449245, 2028943, 2898490, 4057886, 10144715, 20289430]

約数ペア:

[(1, 20289430), (2, 10144715), (5, 4057886), (7, 2898490), (10, 2028943), (14, 1449245), (35, 579698), (47, 431690), (49, 414070), (70, 289849), (94, 215845), (98, 207035), (235, 86338), (245, 82814), (329, 61670), (470, 43169), (490, 41407), (658, 30835), (881, 23030), (1645, 12334), (1762, 11515), (2303, 8810), (3290, 6167), (4405, 4606)]