20791190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{281}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 43978464

約数和(自身を除く): 23187274

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 151, 245, 281, 302, 490, 562, 755, 1057, 1405, 1510, 1967, 2114, 2810, 3934, 5285, 7399, 9835, 10570, 13769, 14798, 19670, 27538, 36995, 42431, 68845, 73990, 84862, 137690, 212155, 297017, 424310, 594034, 1485085, 2079119, 2970170, 4158238, 10395595, 20791190]

約数ペア:

[(1, 20791190), (2, 10395595), (5, 4158238), (7, 2970170), (10, 2079119), (14, 1485085), (35, 594034), (49, 424310), (70, 297017), (98, 212155), (151, 137690), (245, 84862), (281, 73990), (302, 68845), (490, 42431), (562, 36995), (755, 27538), (1057, 19670), (1405, 14798), (1510, 13769), (1967, 10570), (2114, 9835), (2810, 7399), (3934, 5285)]