20339000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^2$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 53155440

約数和(自身を除く): 32816440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 43, 44, 50, 55, 86, 88, 100, 110, 125, 172, 200, 215, 220, 250, 275, 344, 430, 440, 473, 500, 550, 860, 946, 1000, 1075, 1100, 1375, 1720, 1849, 1892, 2150, 2200, 2365, 2750, 3698, 3784, 4300, 4730, 5375, 5500, 7396, 8600, 9245, 9460, 10750, 11000, 11825, 14792, 18490, 18920, 20339, 21500, 23650, 36980, 40678, 43000, 46225, 47300, 59125, 73960, 81356, 92450, 94600, 101695, 118250, 162712, 184900, 203390, 231125, 236500, 369800, 406780, 462250, 473000, 508475, 813560, 924500, 1016950, 1849000, 2033900, 2542375, 4067800, 5084750, 10169500, 20339000]

約数ペア:

[(1, 20339000), (2, 10169500), (4, 5084750), (5, 4067800), (8, 2542375), (10, 2033900), (11, 1849000), (20, 1016950), (22, 924500), (25, 813560), (40, 508475), (43, 473000), (44, 462250), (50, 406780), (55, 369800), (86, 236500), (88, 231125), (100, 203390), (110, 184900), (125, 162712), (172, 118250), (200, 101695), (215, 94600), (220, 92450), (250, 81356), (275, 73960), (344, 59125), (430, 47300), (440, 46225), (473, 43000), (500, 40678), (550, 36980), (860, 23650), (946, 21500), (1000, 20339), (1075, 18920), (1100, 18490), (1375, 14792), (1720, 11825), (1849, 11000), (1892, 10750), (2150, 9460), (2200, 9245), (2365, 8600), (2750, 7396), (3698, 5500), (3784, 5375), (4300, 4730)]