81770255

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2593}}^1$

素因数の和:2675

約数の個数: 32

約数和(自身を含む): 121025664

約数和(自身を除く): 39255409

約数列:

[1, 5, 7, 17, 35, 53, 85, 119, 265, 371, 595, 901, 1855, 2593, 4505, 6307, 12965, 18151, 31535, 44081, 90755, 137429, 220405, 308567, 687145, 962003, 1542835, 2336293, 4810015, 11681465, 16354051, 81770255]

約数ペア:

[(1, 81770255), (5, 16354051), (7, 11681465), (17, 4810015), (35, 2336293), (53, 1542835), (85, 962003), (119, 687145), (265, 308567), (371, 220405), (595, 137429), (901, 90755), (1855, 44081), (2593, 31535), (4505, 18151), (6307, 12965)]