128007985

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{457}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 180444672

約数和(自身を除く): 52436687

約数列:

[1, 5, 7, 35, 53, 151, 265, 371, 457, 755, 1057, 1855, 2285, 3199, 5285, 8003, 15995, 24221, 40015, 56021, 69007, 121105, 169547, 280105, 345035, 483049, 847735, 2415245, 3657371, 18286855, 25601597, 128007985]

約数ペア:

[(1, 128007985), (5, 25601597), (7, 18286855), (35, 3657371), (53, 2415245), (151, 847735), (265, 483049), (371, 345035), (457, 280105), (755, 169547), (1057, 121105), (1855, 69007), (2285, 56021), (3199, 40015), (5285, 24221), (8003, 15995)]