31895680

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 128

約数和(自身を含む): 83476800

約数和(自身を除く): 51581120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 61, 64, 76, 80, 86, 95, 122, 128, 152, 160, 172, 190, 215, 244, 304, 305, 320, 344, 380, 430, 488, 608, 610, 640, 688, 760, 817, 860, 976, 1159, 1216, 1220, 1376, 1520, 1634, 1720, 1952, 2318, 2432, 2440, 2623, 2752, 3040, 3268, 3440, 3904, 4085, 4636, 4880, 5246, 5504, 5795, 6080, 6536, 6880, 7808, 8170, 9272, 9760, 10492, 11590, 12160, 13072, 13115, 13760, 16340, 18544, 19520, 20984, 23180, 26144, 26230, 27520, 32680, 37088, 39040, 41968, 46360, 49837, 52288, 52460, 65360, 74176, 83936, 92720, 99674, 104576, 104920, 130720, 148352, 167872, 185440, 199348, 209840, 249185, 261440, 335744, 370880, 398696, 419680, 498370, 522880, 741760, 797392, 839360, 996740, 1594784, 1678720, 1993480, 3189568, 3986960, 6379136, 7973920, 15947840, 31895680]

約数ペア:

[(1, 31895680), (2, 15947840), (4, 7973920), (5, 6379136), (8, 3986960), (10, 3189568), (16, 1993480), (19, 1678720), (20, 1594784), (32, 996740), (38, 839360), (40, 797392), (43, 741760), (61, 522880), (64, 498370), (76, 419680), (80, 398696), (86, 370880), (95, 335744), (122, 261440), (128, 249185), (152, 209840), (160, 199348), (172, 185440), (190, 167872), (215, 148352), (244, 130720), (304, 104920), (305, 104576), (320, 99674), (344, 92720), (380, 83936), (430, 74176), (488, 65360), (608, 52460), (610, 52288), (640, 49837), (688, 46360), (760, 41968), (817, 39040), (860, 37088), (976, 32680), (1159, 27520), (1216, 26230), (1220, 26144), (1376, 23180), (1520, 20984), (1634, 19520), (1720, 18544), (1952, 16340), (2318, 13760), (2432, 13115), (2440, 13072), (2623, 12160), (2752, 11590), (3040, 10492), (3268, 9760), (3440, 9272), (3904, 8170), (4085, 7808), (4636, 6880), (4880, 6536), (5246, 6080), (5504, 5795)]