19698280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70351}}^1$

素因数の和:70369

約数の個数: 32

約数和(自身を含む): 50653440

約数和(自身を除く): 30955160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70351, 140702, 281404, 351755, 492457, 562808, 703510, 984914, 1407020, 1969828, 2462285, 2814040, 3939656, 4924570, 9849140, 19698280]

約数ペア:

[(1, 19698280), (2, 9849140), (4, 4924570), (5, 3939656), (7, 2814040), (8, 2462285), (10, 1969828), (14, 1407020), (20, 984914), (28, 703510), (35, 562808), (40, 492457), (56, 351755), (70, 281404), (140, 140702), (280, 70351)]