123969920

素因数分解:

$2^7\times 5^1\times {\mathrm{193703}}^1$

素因数の和:193722

約数の個数: 32

約数和(自身を含む): 296367120

約数和(自身を除く): 172397200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 193703, 387406, 774812, 968515, 1549624, 1937030, 3099248, 3874060, 6198496, 7748120, 12396992, 15496240, 24793984, 30992480, 61984960, 123969920]

約数ペア:

[(1, 123969920), (2, 61984960), (4, 30992480), (5, 24793984), (8, 15496240), (10, 12396992), (16, 7748120), (20, 6198496), (32, 3874060), (40, 3099248), (64, 1937030), (80, 1549624), (128, 968515), (160, 774812), (320, 387406), (640, 193703)]