20105354540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11295143}}^1$

素因数の和:11295241

約数の個数: 24

約数和(自身を含む): 42695644320

約数和(自身を除く): 22590289780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11295143, 22590286, 45180572, 56475715, 112951430, 225902860, 1005267727, 2010535454, 4021070908, 5026338635, 10052677270, 20105354540]

約数ペア:

[(1, 20105354540), (2, 10052677270), (4, 5026338635), (5, 4021070908), (10, 2010535454), (20, 1005267727), (89, 225902860), (178, 112951430), (356, 56475715), (445, 45180572), (890, 22590286), (1780, 11295143)]