20199224620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11347879}}^1$

素因数の和:11347977

約数の個数: 24

約数和(自身を含む): 42894986400

約数和(自身を除く): 22695761780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11347879, 22695758, 45391516, 56739395, 113478790, 226957580, 1009961231, 2019922462, 4039844924, 5049806155, 10099612310, 20199224620]

約数ペア:

[(1, 20199224620), (2, 10099612310), (4, 5049806155), (5, 4039844924), (10, 2019922462), (20, 1009961231), (89, 226957580), (178, 113478790), (356, 56739395), (445, 45391516), (890, 22695758), (1780, 11347879)]