199745640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{554849}}^1$

素因数の和:554866

約数の個数: 48

約数和(自身を含む): 649174500

約数和(自身を除く): 449428860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 554849, 1109698, 1664547, 2219396, 2774245, 3329094, 4438792, 4993641, 5548490, 6658188, 8322735, 9987282, 11096980, 13316376, 16645470, 19974564, 22193960, 24968205, 33290940, 39949128, 49936410, 66581880, 99872820, 199745640]

約数ペア:

[(1, 199745640), (2, 99872820), (3, 66581880), (4, 49936410), (5, 39949128), (6, 33290940), (8, 24968205), (9, 22193960), (10, 19974564), (12, 16645470), (15, 13316376), (18, 11096980), (20, 9987282), (24, 8322735), (30, 6658188), (36, 5548490), (40, 4993641), (45, 4438792), (60, 3329094), (72, 2774245), (90, 2219396), (120, 1664547), (180, 1109698), (360, 554849)]