81390830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{991}}^1$

素因数の和:1232

約数の個数: 32

約数和(自身を含む): 150847488

約数和(自身を除く): 69456658

約数列:

[1, 2, 5, 10, 43, 86, 191, 215, 382, 430, 955, 991, 1910, 1982, 4955, 8213, 9910, 16426, 41065, 42613, 82130, 85226, 189281, 213065, 378562, 426130, 946405, 1892810, 8139083, 16278166, 40695415, 81390830]

約数ペア:

[(1, 81390830), (2, 40695415), (5, 16278166), (10, 8139083), (43, 1892810), (86, 946405), (191, 426130), (215, 378562), (382, 213065), (430, 189281), (955, 85226), (991, 82130), (1910, 42613), (1982, 41065), (4955, 16426), (8213, 9910)]