78557920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{70141}}^1$

素因数の和:70163

約数の個数: 48

約数和(自身を含む): 212109408

約数和(自身を除く): 133551488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 70141, 140282, 280564, 350705, 490987, 561128, 701410, 981974, 1122256, 1402820, 1963948, 2244512, 2454935, 2805640, 3927896, 4909870, 5611280, 7855792, 9819740, 11222560, 15711584, 19639480, 39278960, 78557920]

約数ペア:

[(1, 78557920), (2, 39278960), (4, 19639480), (5, 15711584), (7, 11222560), (8, 9819740), (10, 7855792), (14, 5611280), (16, 4909870), (20, 3927896), (28, 2805640), (32, 2454935), (35, 2244512), (40, 1963948), (56, 1402820), (70, 1122256), (80, 981974), (112, 701410), (140, 561128), (160, 490987), (224, 350705), (280, 280564), (560, 140282), (1120, 70141)]