205249915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2753}}^1$

素因数の和:2839

約数の個数: 32

約数和(自身を含む): 281304576

約数和(自身を除く): 76054661

約数列:

[1, 5, 13, 31, 37, 65, 155, 185, 403, 481, 1147, 2015, 2405, 2753, 5735, 13765, 14911, 35789, 74555, 85343, 101861, 178945, 426715, 509305, 1109459, 1324193, 3157691, 5547295, 6620965, 15788455, 41049983, 205249915]

約数ペア:

[(1, 205249915), (5, 41049983), (13, 15788455), (31, 6620965), (37, 5547295), (65, 3157691), (155, 1324193), (185, 1109459), (403, 509305), (481, 426715), (1147, 178945), (2015, 101861), (2405, 85343), (2753, 74555), (5735, 35789), (13765, 14911)]