81223151905

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{274667}}^1$

素因数の和:274774

約数の個数: 48

約数和(自身を含む): 121741646976

約数和(自身を除く): 40518495071

約数列:

[1, 5, 7, 17, 35, 49, 71, 85, 119, 245, 355, 497, 595, 833, 1207, 2485, 3479, 4165, 6035, 8449, 17395, 42245, 59143, 274667, 295715, 1373335, 1922669, 4669339, 9613345, 13458683, 19501357, 23346695, 32685373, 67293415, 97506785, 136509499, 163426865, 228797611, 331523069, 682547495, 955566493, 1143988055, 1657615345, 2320661483, 4777832465, 11603307415, 16244630381, 81223151905]

約数ペア:

[(1, 81223151905), (5, 16244630381), (7, 11603307415), (17, 4777832465), (35, 2320661483), (49, 1657615345), (71, 1143988055), (85, 955566493), (119, 682547495), (245, 331523069), (355, 228797611), (497, 163426865), (595, 136509499), (833, 97506785), (1207, 67293415), (2485, 32685373), (3479, 23346695), (4165, 19501357), (6035, 13458683), (8449, 9613345), (17395, 4669339), (42245, 1922669), (59143, 1373335), (274667, 295715)]