2251561288520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{678181111}}^1$

素因数の和:678181205

約数の個数: 32

約数和(自身を含む): 5127049206720

約数和(自身を除く): 2875487918200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 678181111, 1356362222, 2712724444, 3390905555, 5425448888, 6781811110, 13563622220, 27127244440, 56289032213, 112578064426, 225156128852, 281445161065, 450312257704, 562890322130, 1125780644260, 2251561288520]

約数ペア:

[(1, 2251561288520), (2, 1125780644260), (4, 562890322130), (5, 450312257704), (8, 281445161065), (10, 225156128852), (20, 112578064426), (40, 56289032213), (83, 27127244440), (166, 13563622220), (332, 6781811110), (415, 5425448888), (664, 3390905555), (830, 2712724444), (1660, 1356362222), (3320, 678181111)]