81064890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20947}}^1$

素因数の和:21003

約数の個数: 48

約数和(自身を含む): 215680608

約数和(自身を除く): 134615718

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 20947, 41894, 62841, 104735, 125682, 188523, 209470, 314205, 377046, 628410, 900721, 942615, 1801442, 1885230, 2702163, 4503605, 5404326, 8106489, 9007210, 13510815, 16212978, 27021630, 40532445, 81064890]

約数ペア:

[(1, 81064890), (2, 40532445), (3, 27021630), (5, 16212978), (6, 13510815), (9, 9007210), (10, 8106489), (15, 5404326), (18, 4503605), (30, 2702163), (43, 1885230), (45, 1801442), (86, 942615), (90, 900721), (129, 628410), (215, 377046), (258, 314205), (387, 209470), (430, 188523), (645, 125682), (774, 104735), (1290, 62841), (1935, 41894), (3870, 20947)]