128929250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{27143}}^1$

素因数の和:27179

約数の個数: 32

約数和(自身を含む): 254067840

約数和(自身を除く): 125138590

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 2375, 4750, 27143, 54286, 135715, 271430, 515717, 678575, 1031434, 1357150, 2578585, 3392875, 5157170, 6785750, 12892925, 25785850, 64464625, 128929250]

約数ペア:

[(1, 128929250), (2, 64464625), (5, 25785850), (10, 12892925), (19, 6785750), (25, 5157170), (38, 3392875), (50, 2578585), (95, 1357150), (125, 1031434), (190, 678575), (250, 515717), (475, 271430), (950, 135715), (2375, 54286), (4750, 27143)]