389620900

素因数分解:

$2^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{20399}}^1$

素因数の和:20604

約数の個数: 36

約数和(自身を含む): 849945600

約数和(自身を除く): 460324700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 191, 382, 764, 955, 1910, 3820, 4775, 9550, 19100, 20399, 40798, 81596, 101995, 203990, 407980, 509975, 1019950, 2039900, 3896209, 7792418, 15584836, 19481045, 38962090, 77924180, 97405225, 194810450, 389620900]

約数ペア:

[(1, 389620900), (2, 194810450), (4, 97405225), (5, 77924180), (10, 38962090), (20, 19481045), (25, 15584836), (50, 7792418), (100, 3896209), (191, 2039900), (382, 1019950), (764, 509975), (955, 407980), (1910, 203990), (3820, 101995), (4775, 81596), (9550, 40798), (19100, 20399)]