30778875

素因数分解:

$3^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 25437285

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 125, 225, 251, 327, 375, 545, 753, 981, 1125, 1255, 1635, 2259, 2725, 3765, 4905, 6275, 8175, 11295, 13625, 18825, 24525, 27359, 31375, 40875, 56475, 82077, 94125, 122625, 136795, 246231, 282375, 410385, 683975, 1231155, 2051925, 3419875, 6155775, 10259625, 30778875]

約数ペア:

[(1, 30778875), (3, 10259625), (5, 6155775), (9, 3419875), (15, 2051925), (25, 1231155), (45, 683975), (75, 410385), (109, 282375), (125, 246231), (225, 136795), (251, 122625), (327, 94125), (375, 82077), (545, 56475), (753, 40875), (981, 31375), (1125, 27359), (1255, 24525), (1635, 18825), (2259, 13625), (2725, 11295), (3765, 8175), (4905, 6275)]