81940284

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^2\times {\mathrm{1231}}^1$

素因数の和:1327

約数の個数: 54

約数和(自身を含む): 212228016

約数和(自身を除く): 130287732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1231, 1548, 1849, 2462, 3693, 3698, 4924, 5547, 7386, 7396, 11079, 11094, 14772, 16641, 22158, 22188, 33282, 44316, 52933, 66564, 105866, 158799, 211732, 317598, 476397, 635196, 952794, 1905588, 2276119, 4552238, 6828357, 9104476, 13656714, 20485071, 27313428, 40970142, 81940284]

約数ペア:

[(1, 81940284), (2, 40970142), (3, 27313428), (4, 20485071), (6, 13656714), (9, 9104476), (12, 6828357), (18, 4552238), (36, 2276119), (43, 1905588), (86, 952794), (129, 635196), (172, 476397), (258, 317598), (387, 211732), (516, 158799), (774, 105866), (1231, 66564), (1548, 52933), (1849, 44316), (2462, 33282), (3693, 22188), (3698, 22158), (4924, 16641), (5547, 14772), (7386, 11094), (7396, 11079)]