78420339

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 118728000

約数和(自身を除く): 40307661

約数列:

[1, 3, 9, 27, 101, 149, 193, 303, 447, 579, 909, 1341, 1737, 2727, 4023, 5211, 15049, 19493, 28757, 45147, 58479, 86271, 135441, 175437, 258813, 406323, 526311, 776439, 2904457, 8713371, 26140113, 78420339]

約数ペア:

[(1, 78420339), (3, 26140113), (9, 8713371), (27, 2904457), (101, 776439), (149, 526311), (193, 406323), (303, 258813), (447, 175437), (579, 135441), (909, 86271), (1341, 58479), (1737, 45147), (2727, 28757), (4023, 19493), (5211, 15049)]