64667425

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 82137600

約数和(自身を除く): 17470175

約数列:

[1, 5, 25, 79, 137, 239, 395, 685, 1195, 1975, 3425, 5975, 10823, 18881, 32743, 54115, 94405, 163715, 270575, 472025, 818575, 2586697, 12933485, 64667425]

約数ペア:

[(1, 64667425), (5, 12933485), (25, 2586697), (79, 818575), (137, 472025), (239, 270575), (395, 163715), (685, 94405), (1195, 54115), (1975, 32743), (3425, 18881), (5975, 10823)]