131219528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{467}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 280350720

約数和(自身を除く): 149131192

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 103, 124, 206, 248, 341, 412, 467, 682, 824, 934, 1133, 1364, 1868, 2266, 2728, 3193, 3736, 4532, 5137, 6386, 9064, 10274, 12772, 14477, 20548, 25544, 28954, 35123, 41096, 48101, 57908, 70246, 96202, 115816, 140492, 159247, 192404, 280984, 318494, 384808, 529111, 636988, 1058222, 1273976, 1491131, 2116444, 2982262, 4232888, 5964524, 11929048, 16402441, 32804882, 65609764, 131219528]

約数ペア:

[(1, 131219528), (2, 65609764), (4, 32804882), (8, 16402441), (11, 11929048), (22, 5964524), (31, 4232888), (44, 2982262), (62, 2116444), (88, 1491131), (103, 1273976), (124, 1058222), (206, 636988), (248, 529111), (341, 384808), (412, 318494), (467, 280984), (682, 192404), (824, 159247), (934, 140492), (1133, 115816), (1364, 96202), (1868, 70246), (2266, 57908), (2728, 48101), (3193, 41096), (3736, 35123), (4532, 28954), (5137, 25544), (6386, 20548), (9064, 14477), (10274, 12772)]