20668852540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3141163}}^1$

素因数の和:3141226

約数の個数: 48

約数和(自身を含む): 50660692992

約数和(自身を除く): 29991840452

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, 3290, 6580, 3141163, 6282326, 12564652, 15705815, 21988141, 31411630, 43976282, 62823260, 87952564, 109940705, 147634661, 219881410, 295269322, 439762820, 590538644, 738173305, 1033442627, 1476346610, 2066885254, 2952693220, 4133770508, 5167213135, 10334426270, 20668852540]

約数ペア:

[(1, 20668852540), (2, 10334426270), (4, 5167213135), (5, 4133770508), (7, 2952693220), (10, 2066885254), (14, 1476346610), (20, 1033442627), (28, 738173305), (35, 590538644), (47, 439762820), (70, 295269322), (94, 219881410), (140, 147634661), (188, 109940705), (235, 87952564), (329, 62823260), (470, 43976282), (658, 31411630), (940, 21988141), (1316, 15705815), (1645, 12564652), (3290, 6282326), (6580, 3141163)]