81640080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{761}}^1$

素因数の和:929

約数の個数: 120

約数和(自身を含む): 276377400

約数和(自身を除く): 194737320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 149, 180, 240, 298, 360, 447, 596, 720, 745, 761, 894, 1192, 1341, 1490, 1522, 1788, 2235, 2283, 2384, 2682, 2980, 3044, 3576, 3805, 4470, 4566, 5364, 5960, 6088, 6705, 6849, 7152, 7610, 8940, 9132, 10728, 11415, 11920, 12176, 13410, 13698, 15220, 17880, 18264, 21456, 22830, 26820, 27396, 30440, 34245, 35760, 36528, 45660, 53640, 54792, 60880, 68490, 91320, 107280, 109584, 113389, 136980, 182640, 226778, 273960, 340167, 453556, 547920, 566945, 680334, 907112, 1020501, 1133890, 1360668, 1700835, 1814224, 2041002, 2267780, 2721336, 3401670, 4082004, 4535560, 5102505, 5442672, 6803340, 8164008, 9071120, 10205010, 13606680, 16328016, 20410020, 27213360, 40820040, 81640080]

約数ペア:

[(1, 81640080), (2, 40820040), (3, 27213360), (4, 20410020), (5, 16328016), (6, 13606680), (8, 10205010), (9, 9071120), (10, 8164008), (12, 6803340), (15, 5442672), (16, 5102505), (18, 4535560), (20, 4082004), (24, 3401670), (30, 2721336), (36, 2267780), (40, 2041002), (45, 1814224), (48, 1700835), (60, 1360668), (72, 1133890), (80, 1020501), (90, 907112), (120, 680334), (144, 566945), (149, 547920), (180, 453556), (240, 340167), (298, 273960), (360, 226778), (447, 182640), (596, 136980), (720, 113389), (745, 109584), (761, 107280), (894, 91320), (1192, 68490), (1341, 60880), (1490, 54792), (1522, 53640), (1788, 45660), (2235, 36528), (2283, 35760), (2384, 34245), (2682, 30440), (2980, 27396), (3044, 26820), (3576, 22830), (3805, 21456), (4470, 18264), (4566, 17880), (5364, 15220), (5960, 13698), (6088, 13410), (6705, 12176), (6849, 11920), (7152, 11415), (7610, 10728), (8940, 9132)]