205992980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1\times {\mathrm{521}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 442777104

約数和(自身を除く): 236784124

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 373, 521, 530, 746, 1042, 1060, 1492, 1865, 2084, 2605, 3730, 5210, 7460, 10420, 19769, 27613, 39538, 55226, 79076, 98845, 110452, 138065, 194333, 197690, 276130, 388666, 395380, 552260, 777332, 971665, 1943330, 3886660, 10299649, 20599298, 41198596, 51498245, 102996490, 205992980]

約数ペア:

[(1, 205992980), (2, 102996490), (4, 51498245), (5, 41198596), (10, 20599298), (20, 10299649), (53, 3886660), (106, 1943330), (212, 971665), (265, 777332), (373, 552260), (521, 395380), (530, 388666), (746, 276130), (1042, 197690), (1060, 194333), (1492, 138065), (1865, 110452), (2084, 98845), (2605, 79076), (3730, 55226), (5210, 39538), (7460, 27613), (10420, 19769)]