81610236

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 212808960

約数和(自身を除く): 131198724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 139, 141, 188, 278, 282, 347, 417, 423, 556, 564, 694, 834, 846, 1041, 1251, 1388, 1668, 1692, 2082, 2502, 3123, 4164, 5004, 6246, 6533, 12492, 13066, 16309, 19599, 26132, 32618, 39198, 48233, 48927, 58797, 65236, 78396, 96466, 97854, 117594, 144699, 146781, 192932, 195708, 235188, 289398, 293562, 434097, 578796, 587124, 868194, 1736388, 2266951, 4533902, 6800853, 9067804, 13601706, 20402559, 27203412, 40805118, 81610236]

約数ペア:

[(1, 81610236), (2, 40805118), (3, 27203412), (4, 20402559), (6, 13601706), (9, 9067804), (12, 6800853), (18, 4533902), (36, 2266951), (47, 1736388), (94, 868194), (139, 587124), (141, 578796), (188, 434097), (278, 293562), (282, 289398), (347, 235188), (417, 195708), (423, 192932), (556, 146781), (564, 144699), (694, 117594), (834, 97854), (846, 96466), (1041, 78396), (1251, 65236), (1388, 58797), (1668, 48927), (1692, 48233), (2082, 39198), (2502, 32618), (3123, 26132), (4164, 19599), (5004, 16309), (6246, 13066), (6533, 12492)]