305240185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 396226080

約数和(自身を除く): 90985895

約数列:

[1, 5, 17, 85, 89, 157, 257, 445, 785, 1285, 1513, 2669, 4369, 7565, 13345, 13973, 21845, 22873, 40349, 69865, 114365, 201745, 237541, 388841, 685933, 1187705, 1944205, 3429665, 3591061, 17955305, 61048037, 305240185]

約数ペア:

[(1, 305240185), (5, 61048037), (17, 17955305), (85, 3591061), (89, 3429665), (157, 1944205), (257, 1187705), (445, 685933), (785, 388841), (1285, 237541), (1513, 201745), (2669, 114365), (4369, 69865), (7565, 40349), (13345, 22873), (13973, 21845)]