20888950

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 40466160

約数和(自身を除く): 19577210

約数列:

[1, 2, 5, 10, 25, 50, 59, 73, 97, 118, 146, 194, 295, 365, 485, 590, 730, 970, 1475, 1825, 2425, 2950, 3650, 4307, 4850, 5723, 7081, 8614, 11446, 14162, 21535, 28615, 35405, 43070, 57230, 70810, 107675, 143075, 177025, 215350, 286150, 354050, 417779, 835558, 2088895, 4177790, 10444475, 20888950]

約数ペア:

[(1, 20888950), (2, 10444475), (5, 4177790), (10, 2088895), (25, 835558), (50, 417779), (59, 354050), (73, 286150), (97, 215350), (118, 177025), (146, 143075), (194, 107675), (295, 70810), (365, 57230), (485, 43070), (590, 35405), (730, 28615), (970, 21535), (1475, 14162), (1825, 11446), (2425, 8614), (2950, 7081), (3650, 5723), (4307, 4850)]