205207960

素因数分解:

$2^3\times 5^1\times {\mathrm{1777}}^1\times {\mathrm{2887}}^1$

素因数の和:4675

約数の個数: 32

約数和(自身を含む): 462137760

約数和(自身を除く): 256929800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1777, 2887, 3554, 5774, 7108, 8885, 11548, 14216, 14435, 17770, 23096, 28870, 35540, 57740, 71080, 115480, 5130199, 10260398, 20520796, 25650995, 41041592, 51301990, 102603980, 205207960]

約数ペア:

[(1, 205207960), (2, 102603980), (4, 51301990), (5, 41041592), (8, 25650995), (10, 20520796), (20, 10260398), (40, 5130199), (1777, 115480), (2887, 71080), (3554, 57740), (5774, 35540), (7108, 28870), (8885, 23096), (11548, 17770), (14216, 14435)]