20398525

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2843}}^1$

素因数の和:2901

約数の個数: 24

約数和(自身を含む): 29623104

約数和(自身を除く): 9224579

約数列:

[1, 5, 7, 25, 35, 41, 175, 205, 287, 1025, 1435, 2843, 7175, 14215, 19901, 71075, 99505, 116563, 497525, 582815, 815941, 2914075, 4079705, 20398525]

約数ペア:

[(1, 20398525), (5, 4079705), (7, 2914075), (25, 815941), (35, 582815), (41, 497525), (175, 116563), (205, 99505), (287, 71075), (1025, 19901), (1435, 14215), (2843, 7175)]