205621173

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 348712320

約数和(自身を除く): 143091147

約数列:

[1, 3, 9, 19, 23, 27, 37, 57, 69, 81, 111, 157, 171, 207, 333, 437, 471, 513, 621, 703, 851, 999, 1311, 1413, 1539, 1863, 2109, 2553, 2983, 2997, 3611, 3933, 4239, 5809, 6327, 7659, 8949, 10833, 11799, 12717, 16169, 17427, 18981, 22977, 26847, 32499, 35397, 48507, 52281, 56943, 68609, 68931, 80541, 97497, 110371, 133607, 145521, 156843, 205827, 241623, 292491, 331113, 400821, 436563, 470529, 617481, 993339, 1202463, 1309689, 1852443, 2538533, 2980017, 3607389, 5557329, 7615599, 8940051, 10822167, 22846797, 68540391, 205621173]

約数ペア:

[(1, 205621173), (3, 68540391), (9, 22846797), (19, 10822167), (23, 8940051), (27, 7615599), (37, 5557329), (57, 3607389), (69, 2980017), (81, 2538533), (111, 1852443), (157, 1309689), (171, 1202463), (207, 993339), (333, 617481), (437, 470529), (471, 436563), (513, 400821), (621, 331113), (703, 292491), (851, 241623), (999, 205827), (1311, 156843), (1413, 145521), (1539, 133607), (1863, 110371), (2109, 97497), (2553, 80541), (2983, 68931), (2997, 68609), (3611, 56943), (3933, 52281), (4239, 48507), (5809, 35397), (6327, 32499), (7659, 26847), (8949, 22977), (10833, 18981), (11799, 17427), (12717, 16169)]