128769520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 160

約数和(自身を含む): 346477824

約数和(自身を除く): 217708304

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 43, 44, 55, 80, 82, 83, 86, 88, 110, 164, 166, 172, 176, 205, 215, 220, 328, 332, 344, 410, 415, 430, 440, 451, 473, 656, 664, 688, 820, 830, 860, 880, 902, 913, 946, 1328, 1640, 1660, 1720, 1763, 1804, 1826, 1892, 2255, 2365, 3280, 3320, 3403, 3440, 3526, 3569, 3608, 3652, 3784, 4510, 4565, 4730, 6640, 6806, 7052, 7138, 7216, 7304, 7568, 8815, 9020, 9130, 9460, 13612, 14104, 14276, 14608, 17015, 17630, 17845, 18040, 18260, 18920, 19393, 27224, 28208, 28552, 34030, 35260, 35690, 36080, 36520, 37433, 37840, 38786, 39259, 54448, 57104, 68060, 70520, 71380, 73040, 74866, 77572, 78518, 96965, 136120, 141040, 142760, 146329, 149732, 155144, 157036, 187165, 193930, 196295, 272240, 285520, 292658, 299464, 310288, 314072, 374330, 387860, 392590, 585316, 598928, 628144, 731645, 748660, 775720, 785180, 1170632, 1463290, 1497320, 1551440, 1570360, 1609619, 2341264, 2926580, 2994640, 3140720, 3219238, 5853160, 6438476, 8048095, 11706320, 12876952, 16096190, 25753904, 32192380, 64384760, 128769520]

約数ペア:

[(1, 128769520), (2, 64384760), (4, 32192380), (5, 25753904), (8, 16096190), (10, 12876952), (11, 11706320), (16, 8048095), (20, 6438476), (22, 5853160), (40, 3219238), (41, 3140720), (43, 2994640), (44, 2926580), (55, 2341264), (80, 1609619), (82, 1570360), (83, 1551440), (86, 1497320), (88, 1463290), (110, 1170632), (164, 785180), (166, 775720), (172, 748660), (176, 731645), (205, 628144), (215, 598928), (220, 585316), (328, 392590), (332, 387860), (344, 374330), (410, 314072), (415, 310288), (430, 299464), (440, 292658), (451, 285520), (473, 272240), (656, 196295), (664, 193930), (688, 187165), (820, 157036), (830, 155144), (860, 149732), (880, 146329), (902, 142760), (913, 141040), (946, 136120), (1328, 96965), (1640, 78518), (1660, 77572), (1720, 74866), (1763, 73040), (1804, 71380), (1826, 70520), (1892, 68060), (2255, 57104), (2365, 54448), (3280, 39259), (3320, 38786), (3403, 37840), (3440, 37433), (3526, 36520), (3569, 36080), (3608, 35690), (3652, 35260), (3784, 34030), (4510, 28552), (4565, 28208), (4730, 27224), (6640, 19393), (6806, 18920), (7052, 18260), (7138, 18040), (7216, 17845), (7304, 17630), (7568, 17015), (8815, 14608), (9020, 14276), (9130, 14104), (9460, 13612)]