30484280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8563}}^1$

素因数の和:8663

約数の個数: 32

約数和(自身を含む): 69368400

約数和(自身を除く): 38884120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8563, 17126, 34252, 42815, 68504, 85630, 171260, 342520, 762107, 1524214, 3048428, 3810535, 6096856, 7621070, 15242140, 30484280]

約数ペア:

[(1, 30484280), (2, 15242140), (4, 7621070), (5, 6096856), (8, 3810535), (10, 3048428), (20, 1524214), (40, 762107), (89, 342520), (178, 171260), (356, 85630), (445, 68504), (712, 42815), (890, 34252), (1780, 17126), (3560, 8563)]