161861950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2543}}^1$

素因数の和:2641

約数の個数: 48

約数和(自身を含む): 321765120

約数和(自身を除く): 159903170

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 67, 95, 134, 190, 335, 475, 670, 950, 1273, 1675, 2543, 2546, 3350, 5086, 6365, 12715, 12730, 25430, 31825, 48317, 63575, 63650, 96634, 127150, 170381, 241585, 340762, 483170, 851905, 1207925, 1703810, 2415850, 3237239, 4259525, 6474478, 8519050, 16186195, 32372390, 80930975, 161861950]

約数ペア:

[(1, 161861950), (2, 80930975), (5, 32372390), (10, 16186195), (19, 8519050), (25, 6474478), (38, 4259525), (50, 3237239), (67, 2415850), (95, 1703810), (134, 1207925), (190, 851905), (335, 483170), (475, 340762), (670, 241585), (950, 170381), (1273, 127150), (1675, 96634), (2543, 63650), (2546, 63575), (3350, 48317), (5086, 31825), (6365, 25430), (12715, 12730)]