81081040

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12211}}^1$

素因数の和:12307

約数の個数: 40

約数和(自身を含む): 190800288

約数和(自身を除く): 109719248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 12211, 24422, 48844, 61055, 97688, 122110, 195376, 244220, 488440, 976880, 1013513, 2027026, 4054052, 5067565, 8108104, 10135130, 16216208, 20270260, 40540520, 81081040]

約数ペア:

[(1, 81081040), (2, 40540520), (4, 20270260), (5, 16216208), (8, 10135130), (10, 8108104), (16, 5067565), (20, 4054052), (40, 2027026), (80, 1013513), (83, 976880), (166, 488440), (332, 244220), (415, 195376), (664, 122110), (830, 97688), (1328, 61055), (1660, 48844), (3320, 24422), (6640, 12211)]