18170380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22159}}^1$

素因数の和:22209

約数の個数: 24

約数和(自身を含む): 39090240

約数和(自身を除く): 20919860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22159, 44318, 88636, 110795, 221590, 443180, 908519, 1817038, 3634076, 4542595, 9085190, 18170380]

約数ペア:

[(1, 18170380), (2, 9085190), (4, 4542595), (5, 3634076), (10, 1817038), (20, 908519), (41, 443180), (82, 221590), (164, 110795), (205, 88636), (410, 44318), (820, 22159)]