81688260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1361471}}^1$

素因数の和:1361483

約数の個数: 24

約数和(自身を含む): 228727296

約数和(自身を除く): 147039036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1361471, 2722942, 4084413, 5445884, 6807355, 8168826, 13614710, 16337652, 20422065, 27229420, 40844130, 81688260]

約数ペア:

[(1, 81688260), (2, 40844130), (3, 27229420), (4, 20422065), (5, 16337652), (6, 13614710), (10, 8168826), (12, 6807355), (15, 5445884), (20, 4084413), (30, 2722942), (60, 1361471)]