30251990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1789}}^1$

素因数の和:1904

約数の個数: 32

約数和(自身を含む): 57996000

約数和(自身を除く): 27744010

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 890, 1691, 1789, 3382, 3578, 8455, 8945, 16910, 17890, 33991, 67982, 159221, 169955, 318442, 339910, 796105, 1592210, 3025199, 6050398, 15125995, 30251990]

約数ペア:

[(1, 30251990), (2, 15125995), (5, 6050398), (10, 3025199), (19, 1592210), (38, 796105), (89, 339910), (95, 318442), (178, 169955), (190, 159221), (445, 67982), (890, 33991), (1691, 17890), (1789, 16910), (3382, 8945), (3578, 8455)]