20098505

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1987}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 29295168

約数和(自身を除く): 9196663

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 1987, 2023, 9935, 10115, 13909, 33779, 69545, 168895, 236453, 574243, 1182265, 2871215, 4019701, 20098505]

約数ペア:

[(1, 20098505), (5, 4019701), (7, 2871215), (17, 1182265), (35, 574243), (85, 236453), (119, 168895), (289, 69545), (595, 33779), (1445, 13909), (1987, 10115), (2023, 9935)]