209940975

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{49109}}^1$

素因数の和:49144

約数の個数: 36

約数和(自身を含む): 395826600

約数和(自身を除く): 185885625

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 49109, 147327, 245545, 441981, 736635, 933071, 1227725, 2209905, 2799213, 3683175, 4665355, 8397639, 11049525, 13996065, 23326775, 41988195, 69980325, 209940975]

約数ペア:

[(1, 209940975), (3, 69980325), (5, 41988195), (9, 23326775), (15, 13996065), (19, 11049525), (25, 8397639), (45, 4665355), (57, 3683175), (75, 2799213), (95, 2209905), (171, 1227725), (225, 933071), (285, 736635), (475, 441981), (855, 245545), (1425, 147327), (4275, 49109)]