20519250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 31372590

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 109, 125, 150, 218, 250, 251, 327, 375, 502, 545, 654, 750, 753, 1090, 1255, 1506, 1635, 2510, 2725, 3270, 3765, 5450, 6275, 7530, 8175, 12550, 13625, 16350, 18825, 27250, 27359, 31375, 37650, 40875, 54718, 62750, 81750, 82077, 94125, 136795, 164154, 188250, 273590, 410385, 683975, 820770, 1367950, 2051925, 3419875, 4103850, 6839750, 10259625, 20519250]

約数ペア:

[(1, 20519250), (2, 10259625), (3, 6839750), (5, 4103850), (6, 3419875), (10, 2051925), (15, 1367950), (25, 820770), (30, 683975), (50, 410385), (75, 273590), (109, 188250), (125, 164154), (150, 136795), (218, 94125), (250, 82077), (251, 81750), (327, 62750), (375, 54718), (502, 40875), (545, 37650), (654, 31375), (750, 27359), (753, 27250), (1090, 18825), (1255, 16350), (1506, 13625), (1635, 12550), (2510, 8175), (2725, 7530), (3270, 6275), (3765, 5450)]