31139520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:382

約数の個数: 112

約数和(自身を含む): 99974400

約数和(自身を除く): 68834880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 163, 192, 199, 240, 320, 326, 398, 480, 489, 597, 652, 796, 815, 960, 978, 995, 1194, 1304, 1592, 1630, 1956, 1990, 2388, 2445, 2608, 2985, 3184, 3260, 3912, 3980, 4776, 4890, 5216, 5970, 6368, 6520, 7824, 7960, 9552, 9780, 10432, 11940, 12736, 13040, 15648, 15920, 19104, 19560, 23880, 26080, 31296, 31840, 32437, 38208, 39120, 47760, 52160, 63680, 64874, 78240, 95520, 97311, 129748, 156480, 162185, 191040, 194622, 259496, 324370, 389244, 486555, 518992, 648740, 778488, 973110, 1037984, 1297480, 1556976, 1946220, 2075968, 2594960, 3113952, 3892440, 5189920, 6227904, 7784880, 10379840, 15569760, 31139520]

約数ペア:

[(1, 31139520), (2, 15569760), (3, 10379840), (4, 7784880), (5, 6227904), (6, 5189920), (8, 3892440), (10, 3113952), (12, 2594960), (15, 2075968), (16, 1946220), (20, 1556976), (24, 1297480), (30, 1037984), (32, 973110), (40, 778488), (48, 648740), (60, 518992), (64, 486555), (80, 389244), (96, 324370), (120, 259496), (160, 194622), (163, 191040), (192, 162185), (199, 156480), (240, 129748), (320, 97311), (326, 95520), (398, 78240), (480, 64874), (489, 63680), (597, 52160), (652, 47760), (796, 39120), (815, 38208), (960, 32437), (978, 31840), (995, 31296), (1194, 26080), (1304, 23880), (1592, 19560), (1630, 19104), (1956, 15920), (1990, 15648), (2388, 13040), (2445, 12736), (2608, 11940), (2985, 10432), (3184, 9780), (3260, 9552), (3912, 7960), (3980, 7824), (4776, 6520), (4890, 6368), (5216, 5970)]