81639185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 107412480

約数和(自身を除く): 25773295

約数列:

[1, 5, 17, 59, 73, 85, 223, 295, 365, 1003, 1115, 1241, 3791, 4307, 5015, 6205, 13157, 16279, 18955, 21535, 65785, 73219, 81395, 223669, 276743, 366095, 960461, 1118345, 1383715, 4802305, 16327837, 81639185]

約数ペア:

[(1, 81639185), (5, 16327837), (17, 4802305), (59, 1383715), (73, 1118345), (85, 960461), (223, 366095), (295, 276743), (365, 223669), (1003, 81395), (1115, 73219), (1241, 65785), (3791, 21535), (4307, 18955), (5015, 16279), (6205, 13157)]