207325625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:148

約数の個数: 80

約数和(自身を含む): 314899200

約数和(自身を除く): 107573575

約数列:

[1, 5, 13, 17, 19, 25, 65, 79, 85, 95, 125, 221, 247, 323, 325, 395, 425, 475, 625, 1027, 1105, 1235, 1343, 1501, 1615, 1625, 1975, 2125, 2375, 4199, 5135, 5525, 6175, 6715, 7505, 8075, 8125, 9875, 10625, 11875, 17459, 19513, 20995, 25517, 25675, 27625, 30875, 33575, 37525, 40375, 49375, 87295, 97565, 104975, 127585, 128375, 138125, 154375, 167875, 187625, 201875, 331721, 436475, 487825, 524875, 637925, 641875, 839375, 938125, 1658605, 2182375, 2439125, 2624375, 3189625, 8293025, 10911875, 12195625, 15948125, 41465125, 207325625]

約数ペア:

[(1, 207325625), (5, 41465125), (13, 15948125), (17, 12195625), (19, 10911875), (25, 8293025), (65, 3189625), (79, 2624375), (85, 2439125), (95, 2182375), (125, 1658605), (221, 938125), (247, 839375), (323, 641875), (325, 637925), (395, 524875), (425, 487825), (475, 436475), (625, 331721), (1027, 201875), (1105, 187625), (1235, 167875), (1343, 154375), (1501, 138125), (1615, 128375), (1625, 127585), (1975, 104975), (2125, 97565), (2375, 87295), (4199, 49375), (5135, 40375), (5525, 37525), (6175, 33575), (6715, 30875), (7505, 27625), (8075, 25675), (8125, 25517), (9875, 20995), (10625, 19513), (11875, 17459)]