11845640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 27941760

約数和(自身を除く): 16096120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 97, 142, 172, 194, 215, 284, 344, 355, 388, 430, 485, 568, 710, 776, 860, 970, 1420, 1720, 1940, 2840, 3053, 3880, 4171, 6106, 6887, 8342, 12212, 13774, 15265, 16684, 20855, 24424, 27548, 30530, 33368, 34435, 41710, 55096, 61060, 68870, 83420, 122120, 137740, 166840, 275480, 296141, 592282, 1184564, 1480705, 2369128, 2961410, 5922820, 11845640]

約数ペア:

[(1, 11845640), (2, 5922820), (4, 2961410), (5, 2369128), (8, 1480705), (10, 1184564), (20, 592282), (40, 296141), (43, 275480), (71, 166840), (86, 137740), (97, 122120), (142, 83420), (172, 68870), (194, 61060), (215, 55096), (284, 41710), (344, 34435), (355, 33368), (388, 30530), (430, 27548), (485, 24424), (568, 20855), (710, 16684), (776, 15265), (860, 13774), (970, 12212), (1420, 8342), (1720, 6887), (1940, 6106), (2840, 4171), (3053, 3880)]