161820904

素因数分解:

$2^3\times 7^1\times {\mathrm{1447}}^1\times {\mathrm{1997}}^1$

素因数の和:3457

約数の個数: 32

約数和(自身を含む): 347172480

約数和(自身を除く): 185351576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1447, 1997, 2894, 3994, 5788, 7988, 10129, 11576, 13979, 15976, 20258, 27958, 40516, 55916, 81032, 111832, 2889659, 5779318, 11558636, 20227613, 23117272, 40455226, 80910452, 161820904]

約数ペア:

[(1, 161820904), (2, 80910452), (4, 40455226), (7, 23117272), (8, 20227613), (14, 11558636), (28, 5779318), (56, 2889659), (1447, 111832), (1997, 81032), (2894, 55916), (3994, 40516), (5788, 27958), (7988, 20258), (10129, 15976), (11576, 13979)]