8293025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 12499200

約数和(自身を除く): 4206175

約数列:

[1, 5, 13, 17, 19, 25, 65, 79, 85, 95, 221, 247, 323, 325, 395, 425, 475, 1027, 1105, 1235, 1343, 1501, 1615, 1975, 4199, 5135, 5525, 6175, 6715, 7505, 8075, 17459, 19513, 20995, 25517, 25675, 33575, 37525, 87295, 97565, 104975, 127585, 331721, 436475, 487825, 637925, 1658605, 8293025]

約数ペア:

[(1, 8293025), (5, 1658605), (13, 637925), (17, 487825), (19, 436475), (25, 331721), (65, 127585), (79, 104975), (85, 97565), (95, 87295), (221, 37525), (247, 33575), (323, 25675), (325, 25517), (395, 20995), (425, 19513), (475, 17459), (1027, 8075), (1105, 7505), (1235, 6715), (1343, 6175), (1501, 5525), (1615, 5135), (1975, 4199)]