19716560

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6661}}^1$

素因数の和:6711

約数の個数: 40

約数和(自身を含む): 47087016

約数和(自身を除く): 27370456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6661, 13322, 26644, 33305, 53288, 66610, 106576, 133220, 246457, 266440, 492914, 532880, 985828, 1232285, 1971656, 2464570, 3943312, 4929140, 9858280, 19716560]

約数ペア:

[(1, 19716560), (2, 9858280), (4, 4929140), (5, 3943312), (8, 2464570), (10, 1971656), (16, 1232285), (20, 985828), (37, 532880), (40, 492914), (74, 266440), (80, 246457), (148, 133220), (185, 106576), (296, 66610), (370, 53288), (592, 33305), (740, 26644), (1480, 13322), (2960, 6661)]