81501856

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{971}}^1$

素因数の和:1085

約数の個数: 48

約数和(自身を含む): 167051808

約数和(自身を除く): 85549952

約数列:

[1, 2, 4, 8, 16, 32, 43, 61, 86, 122, 172, 244, 344, 488, 688, 971, 976, 1376, 1942, 1952, 2623, 3884, 5246, 7768, 10492, 15536, 20984, 31072, 41753, 41968, 59231, 83506, 83936, 118462, 167012, 236924, 334024, 473848, 668048, 947696, 1336096, 1895392, 2546933, 5093866, 10187732, 20375464, 40750928, 81501856]

約数ペア:

[(1, 81501856), (2, 40750928), (4, 20375464), (8, 10187732), (16, 5093866), (32, 2546933), (43, 1895392), (61, 1336096), (86, 947696), (122, 668048), (172, 473848), (244, 334024), (344, 236924), (488, 167012), (688, 118462), (971, 83936), (976, 83506), (1376, 59231), (1942, 41968), (1952, 41753), (2623, 31072), (3884, 20984), (5246, 15536), (7768, 10492)]