128238208

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8419}}^1$

素因数の和:8457

約数の個数: 64

約数和(自身を含む): 309182400

約数和(自身を除く): 180944192

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1904, 2176, 3808, 7616, 8419, 15232, 16838, 33676, 58933, 67352, 117866, 134704, 143123, 235732, 269408, 286246, 471464, 538816, 572492, 942928, 1001861, 1077632, 1144984, 1885856, 2003722, 2289968, 3771712, 4007444, 4579936, 7543424, 8014888, 9159872, 16029776, 18319744, 32059552, 64119104, 128238208]

約数ペア:

[(1, 128238208), (2, 64119104), (4, 32059552), (7, 18319744), (8, 16029776), (14, 9159872), (16, 8014888), (17, 7543424), (28, 4579936), (32, 4007444), (34, 3771712), (56, 2289968), (64, 2003722), (68, 1885856), (112, 1144984), (119, 1077632), (128, 1001861), (136, 942928), (224, 572492), (238, 538816), (272, 471464), (448, 286246), (476, 269408), (544, 235732), (896, 143123), (952, 134704), (1088, 117866), (1904, 67352), (2176, 58933), (3808, 33676), (7616, 16838), (8419, 15232)]