171920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{307}}^1$

素因数の和:327

約数の個数: 40

約数和(自身を含む): 458304

約数和(自身を除く): 286384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 307, 560, 614, 1228, 1535, 2149, 2456, 3070, 4298, 4912, 6140, 8596, 10745, 12280, 17192, 21490, 24560, 34384, 42980, 85960, 171920]

約数ペア:

[(1, 171920), (2, 85960), (4, 42980), (5, 34384), (7, 24560), (8, 21490), (10, 17192), (14, 12280), (16, 10745), (20, 8596), (28, 6140), (35, 4912), (40, 4298), (56, 3070), (70, 2456), (80, 2149), (112, 1535), (140, 1228), (280, 614), (307, 560)]