388615975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 543822336

約数和(自身を除く): 155206361

約数列:

[1, 5, 11, 25, 47, 55, 107, 235, 275, 281, 517, 535, 1175, 1177, 1405, 2585, 2675, 3091, 5029, 5885, 7025, 12925, 13207, 15455, 25145, 29425, 30067, 55319, 66035, 77275, 125725, 145277, 150335, 276595, 330175, 330737, 726385, 751675, 1382975, 1413149, 1653685, 3631925, 7065745, 8268425, 15544639, 35328725, 77723195, 388615975]

約数ペア:

[(1, 388615975), (5, 77723195), (11, 35328725), (25, 15544639), (47, 8268425), (55, 7065745), (107, 3631925), (235, 1653685), (275, 1413149), (281, 1382975), (517, 751675), (535, 726385), (1175, 330737), (1177, 330175), (1405, 276595), (2585, 150335), (2675, 145277), (3091, 125725), (5029, 77275), (5885, 66035), (7025, 55319), (12925, 30067), (13207, 29425), (15455, 25145)]