15947840

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 112

約数和(自身を含む): 41574720

約数和(自身を除く): 25626880

約数列:

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

約数ペア:

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