18969125

素因数分解:

$5^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 29165760

約数和(自身を除く): 10196635

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 125, 133, 163, 175, 245, 475, 665, 815, 875, 931, 1141, 1225, 2375, 3097, 3325, 4075, 4655, 5705, 6125, 7987, 15485, 16625, 20375, 21679, 23275, 28525, 39935, 77425, 108395, 116375, 142625, 151753, 199675, 387125, 541975, 758765, 998375, 2709875, 3793825, 18969125]

約数ペア:

[(1, 18969125), (5, 3793825), (7, 2709875), (19, 998375), (25, 758765), (35, 541975), (49, 387125), (95, 199675), (125, 151753), (133, 142625), (163, 116375), (175, 108395), (245, 77425), (475, 39935), (665, 28525), (815, 23275), (875, 21679), (931, 20375), (1141, 16625), (1225, 15485), (2375, 7987), (3097, 6125), (3325, 5705), (4075, 4655)]