164590520

素因数分解:

$2^3\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{2551}}^1$

素因数の和:4175

約数の個数: 32

約数和(自身を含む): 370703520

約数和(自身を除く): 206113000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613, 2551, 3226, 5102, 6452, 8065, 10204, 12755, 12904, 16130, 20408, 25510, 32260, 51020, 64520, 102040, 4114763, 8229526, 16459052, 20573815, 32918104, 41147630, 82295260, 164590520]

約数ペア:

[(1, 164590520), (2, 82295260), (4, 41147630), (5, 32918104), (8, 20573815), (10, 16459052), (20, 8229526), (40, 4114763), (1613, 102040), (2551, 64520), (3226, 51020), (5102, 32260), (6452, 25510), (8065, 20408), (10204, 16130), (12755, 12904)]